If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

What does an Island and the letter T have in common?

Can you find the missing piece of the Porsche?

Can you identify if it's a murder or a suicide ?

You have 1023 apples and 10 bags. You have to distribute these apples in these 10 bags in any way you choose. But when I ask for a certain number of apples you have to give them in terms of bags without transferring the apples from other bags. How do you distribute the apples?