Walking home one day, you take a short cut along the train tracks. The tracks cross a narrow bridge over a deep gorge. At the point you are 3/8 of the way across the bridge, you hear the train whistle somewhere behind you. You charge across the bridge, and jump off the track as the train is about to run you down. As it happens, if you had gone the other way, you would have reached safety just before being run over as well. If you can run ten miles per hour, how fast is the train moving?
The train is moving at 40 miles per hour.
if there was a dog going towards the train while you go away from it as the whistle blows, he will reach his point when you are 3/4 (6/8) of the way on the bridge, the train will have just reached it. So for the train to cross the bridge at a rate four times yours it will have to be moving 4 times as fast.
Four letters form me quite complete, As all who breathe do show; Reversed, you'll find I am the seat Of infamy and woe. Transposed, you'll see I'm base and mean, Again of Jewish race; Transposed once more, I oft am seen To hide a lovely face. What are the five words?
It could be delivered by mail, email, by hand, or even by pigeon.
It is sometimes short, sometimes lengthy, and with deep, profound, or simple feelings.
What is it?
With thieves, I consort,
With the vilest, in short,
I’m quite at ease in depravity;
Yet all divines use me,
And savants can’t lose me,
For I am the center of gravity.
Who am I?
The shape of my form will waver and bend
By the things I’m destroying and those I will rend.
My color changes from bright red to blue,
The power I’m using will dictate my hue.
What am I?
I am all that you see, yet I’m nothing at all, and from you, I will flee.
Formed of deception, I will twist your perception.
Wherever I'm rising, I warp the horizon.
What am I?
A renowned chemist is found dead in his lab. There is no clear evidence except a piece of paper lying by the body. The paper is blank other than the name of five elements scrawled across it hastily:
Nickel
Carbon
Oxygen
Lanthanum
Sulfur
The guard reported that three people visited the chemist that day – his sister, Laura; his colleague, Nicolas; and his wife, Tessa. The criminal was arrested immediately. Who was it?
I am a plant you use in food, and my name consists of 5 letters.
Remove the first letter of my name, and you'll get a form of energy.
Get rid of two, and you'll get something necessary for life.
Scramble together the last 3 letters, and you can drink it.
What am I?
A man who lives on the tenth floor takes the elevator down to the first floor every morning and goes to work. In the evening, when he comes back, on a rainy day, or if there are other people in the elevator, he goes to his floor directly. Otherwise, he goes to the seventh floor and walks up three flights of stairs to his apartment. Why?
My first is a very uncomfortable state, In cold weather, it mostly abounds. My second's an instrument formed of hard steel, That will cause the stout foe to stagger and reel, And when used, is a symptom of hate. My whole is an author of greatest renown, Whose fame to the last day of time will go down. Who am I?
Old Mr. Smith was found dead in his study by young Jack. Jack recounted his dismal discovery to Detective Anderson, who happened to be around the scene.
"I was walking by Mr. Smith's house when I thought I would just pop in for a visit. I noticed his study light was on and I decided to peek in from the outside to see if he was in there. There was frost on the window, so I had to wipe it away to see inside. That is when I saw his body. So I kicked in the front door to confirm my suspicions of foul play. I called the police immediately afterward."
With a clue from Detective Anderson, the police officers immediately arrested Jack for the murder of Mr. Smith.
How could the detective tell Jack was lying?
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