Connecting Two, Touching One

Finish this sequence top to bottom...

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211
?

City Names: Before noon, gaze at water barrier.

The Sister in the Woods

You are lost in the woods and the path you are following forks into two: a path to the left and one to the right. One path will lead you to safety while the other will cause you to be lost forever.
At the fork are two twin sisters who know which path is which. The sisters are identical in every way except one: one of the sisters always tells the truth while the other always lies.
You can ask only one question and you don’t know which sister is which. What can you say to them so you know which path to take?

The Stolen Fire Crystal

Someone has tripped the magical alarms in the Element Temple. When you and the other monks arrive on the scene, you know you have a disaster on your hands. Four young apprentices broke into the temple’s inner chamber to steal the sacred element crystals. But when the alarm went off they panicked, and each of them swallowed a crystal. Can you determine who ate which crystal?
Pause the video at 1:40 to see all the facts and think about the answer. If you give up, continue the video to see the solution!

The Dragon Jousters

After year of war in the magic kingdom, the different species have decided to compete in dragon jousting instead of fighting. You are the recorder of these events, but you overslept and are late! How will you score each match?
Pause the video at 2:10 to consider the problem and see the rules.

Google Riddles - The Surprise Box

You have 3 boxes. One of them contains a prize. You were allowed to pick just one of them.
You pick - and it's empty.
With 2 boxes left, you now have one box in your hand and another box in front of you. If given the chance to exchange your box with the box in front of you, would you do it? Why, and why not?
(The 'Google Riddles' are interview questions those who wish to get hired were asked).

Google Riddles - The Return Flight

Today is more windy than yesterday, will a return flight take the same time, less time, or the same amount of time to complete?
(The 'Google Riddles' are interview questions those who wish to get hired were asked).

The Julius Caeser Box Riddle

What does this message say? Can you decipher it?
G T Y O R J O T E O U I A B G T

The Word in the Matches

The Shadows of Graphs

Look carefully at these graphs, can you find the actual height of the red bar?

The Murderous Family

One evening there was a murder in a house where there lived a married couple with their 2 children - their son and daughter. One of these four people murdered one of the others.
One of the members of the family witnessed the crime.
The other one helped the murderer.
These are the things we know for sure:
1. The witness and the one who helped the murderer were not of the same gender.
2. The oldest person and the witness were not of the same gender.
3. The youngest person and the victim were not of the same gender.
4. The one who helped the murderer was older than the victim.
5. The father was the oldest member of the family.
6. The murderer was not the youngest member of the family.
Who was the murderer?

Old Man Murder

An old man, Dave, lives alone in a flat. Because of his age , he is not able to move comfortably and hence most of the things used to be delivered to his house.
On Friday while delivering the mail, the postman feels something suspicious in the flat and try to look inside through the key hole and he saw the bloody body of the old man.
Homicide arrived the scene. On the outside of flat, they find two bottles of warm milk, Tuesday newspaper, some unopened mails and some gifts.
Homicide waste no time and find the murderer almost immediately.
How did they do it, and who was the murderer?

The Four Jugs Riddle

In a recreational activity, you are given four different jars of 2 liters, 4 liters, 6 liters and 8 liters respectively with an unlimited water supply. Then you are asked to measure exactly 5 liters of water using them.
How will you do it?

The 15 Minutes Recipe

A recipe requires 15 minutes to cook. You have a 7 minutes hourglass and an 11 minutes hourglass with you. How will you measure 15 minutes using them?

Giving Away Vegetable Oil

You are distributing vegetable oil. There are 21 bottles in total out of which 7 are full, 7 half empty and 7 empty. The oils has to be distributed among three people.
How will you distribute so that each person gets equal number of bottles and the same quantity of oil?

The Car Thief

A car thief, who had managed to evade the authorities in the past, unknowingly took the automobile that belonged to Detective Anderson. The detective wasted no time and spared no effort in discovering and carefully examining the available clues. He was able to identify four suspects with certainty that one of them was the culprit.
The four make the statements below. From twelve of total statements, six are true and six false.
Suspect A:
1. C and I have met many times before today.
2. B is guilty.
3. The car thief did not know it was the Detective's car.
Suspect B:
1. D did not do it.
2. D's third statement is false.
3. I am innocent.
Suspect C:
1. I have never met A before today.
2. B is not guilty.
3. D knows how to drive.
Suspect D:
1. B's first statement is false.
2. I do not know how to drive.
3. A did it.
Which one is the car thief?

The Impostor

There are two people in front of you holding guns.
One is your best friend and the other is an impostor who looks just like him and knows all that he knows.
You also have a gun and must shoot the impostor, if you get it wrong, the impostor will shoot you. If you get it right you and your friend are safe.
What is the one question you can ask that will reveal the impostor?

A President's Favorite Riddle

A favorite by Teddy Roosevelt:
"I talk, but I do not speak my mind
I hear words, but I do not listen to thoughts
When I wake, all see me
When I sleep, all hear me
Many heads are on my shoulders
Many hands are at my feet
The strongest steel cannot break my visage
But the softest whisper can destroy me
The quietest whimper can be heard."

Einstein's Riddle: The Pet Fish

There are five houses in a row. Each house is painted a different color and has a person of a different nationality living in it. Each person drinks a different beverage, smokes a different type of cigar, and owns a different animal as a pet.
Using these 15 clues, which person owns the pet fish?
The Brit lives in the red house.
The Swede has a pet dog.
The Dane drinks tea.
The green house is directly to the left of the white house.
The person in the green house drinks coffee.
The person who smokes Pall Mall has a pet bird.
The person in the yellow house smokes Dunhill cigars.
The person in the center house drinks milk.
The Norwegian lives in the first house.
The person who smokes Blends lives next to the person with the pet cat.
The person with the pet horse lives next to the one who smokes Dunhill.
The person who smokes BlueMaster drinks beer.
The German smokes Prince.
The Norwegian lives next to the blue house.
The person who smokes Blends has a neighbor who drinks water.

The One-Sided Toaster

Susan uses a toaster that has 2 slots. The toaster toasts one side of each piece of bread at a time, and it takes exactly 1 minute to do so.
If Susan wants to make three pieces of toast, what is the LEAST amount of time she needs to toast them on both sides?

The Hourglasses

If you have an 11 minute and 13 minute hourglass, how can you accurately time 15 minutes?

A True Equation

Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation.
Conditions: Each must be used exactly once and no other numbers or symbols can be used.

An Egg to a Friend

Mike has some chickens that have been laying him plenty of eggs. He wants to give away his eggs to several of his friends, but he wants to give them all the same number of eggs. He figures out that he needs to give 7 of his friends eggs for them to get the same amount, otherwise there is 1 extra egg left.
What is the least number of eggs he needs for this to be true?

Crossing the Bridge

Four people need to cross a bridge in 17 minutes in the middle of the night. The bridge can only hold two or less people at any time and they only have one flashlight so they must travel together (or alone). The flashlight can only travel with a person so every time it crosses the bridge it must be carried back. Tom can cross in 1 minute, John can cross in 2 minutes, Sally can cross in 5 minutes, and Connor can cross in 10 minutes. If two people cross together they go as fast as the slower person.How can they cross the bridge in 17 minutes or less?