They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

how come the second man dies?

John can eat 27 chocolates in an hour, Jacob can eat 2 chocolates in 10 minutes, and Jolly can eat 7 chocolates in 20 minutes. How long will it take them to share and eat a box of 120 chocolates whilst playing Chess?

Why do Chinese men eat more rice than Japanese men do ?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

What time is it when an elephant sits on a fence?

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

Two boys wish to cross a river. The only way to get to the other side is by boat, but that boat can only take one boy at a time. The boat cannot return on its own, there are no ropes or similar tricks, yet both boys manage to cross using the boat.

How?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?