You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

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

A train full of passengers goes through a tunnel. When the train comes out from the other end, there is no single person on the train.

How did it happen?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.

How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no one else catches or throws it.

81 x 9 = 801. What must you do to make the this equation true?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"