Plus vs. Times

Given two 2s, "plus" can be changed to "times" without changing the results: 2 + 2= 2 x 2.
The solution with three numbers is easy too: **1** + 2 + 3= **1** x 2 x 3.
Now find the answer for 4 numbers and for 5 numbers.

The Bubble Boy

If a boy blows 18 bubbles, then pops 6 eats 7 and then he pops 5 and blows **1**.
How many are left?

The Weight of Soap

We have two soap of equal weights and a 3/4 pound weight.
However, after using **1**/4 of soap we place all three objects on balance as On one side of balance we place one soap (unused) and on another side, we placed used soap (i.e 3/4th of soap) and 3/4 pound weight.
What is the soap weight?

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?

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
?

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?

21 Going on 24

The day before yesterday I was 21, and next year I will be 24. When is my birthday?

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?

An Ant On a Rope

An ant gets onto one end of a tight rope that is **1** meter long. The ant is traveling at **1** centimeter per second, but the entire rope is being stretched an extra **1** meter (1,000 centimeters) a second (it can be stretched forever).
Will the ant ever reach the other end of the rope?

A Weird Pattern

123 = 0
4235 = 0
656 = 2
5390 = 2
8890 = 6
1001 = 2
19235 = **1**
What is 123456789?

Product Equals Sum

Three Daughters and Three Clues

A man has three daughters. A second, intelligent man, asked him the ages of his daughters. The first man told him that the product of their ages (them all multiplied together,) was 36. After thinking the second man was unable to find the answer and asked for another clue. The first man replies the sum of their ages is equal to his house door number. Still the second man was unable to answer and asked for another clue. The first man told him that his youngest daughter had blue eyes, and suddenly second man gave the correct answer. What were the ages of the first man's 3 children?

The Handshakers

If seven people meet each other and each shakes hands only once with each of the others, how many handshakes will there have been?

The Pawn Shop

Jack had only $2, but he needed $3 for his cab fare home. He went to a pawn shop and pawned his $2 for $1.50. Jack then bumped into Don and told him that he would sell him his $2 pawn ticket for $1.50. Dan agreed. Since Jack started out with $2, and he ended up with $3, who is out the extra dollar and why?

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?

Taking Down 1000

What is the value of **1**/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?

Nonstop Trains

A nonstop train leaves Moscow for Leningrad at 60 mph. Another nonstop train leaves Leningrad for Moscow at 40 mph. How far apart are the trains **1** hour before they pass each other?

The Doors of Nine

A new medical building containing 100 offices had just been completed. Mark was hired to paint the numbers **1** to 100 on the doors. How many times will Mark have to paint the number nine?

What's the Next Number?

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).

The Number Pyramid

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