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?

Replace the question mark with the correct number in below Picture:

Find three numbers such that When we multiply three numbers, we will get the prime numbers. The difference between the second and the first number is equal to the third and second.

What are the 50th, 63rd and 100th numbers in the sequence below?
4, 5, 8, 8, 9, 9, 12, 13, 13, 13, 17, 18, ...

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

People put me on the table and cut me but do not eat me. What am I?

Count the number of triangles in the below picture?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

Who can jump higher than a Mountain?

Can you find the missing piece of the Porsche?