I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

Can you find out the missing number in the grid?

How can you make a TV, a bed, a dog, and a car liquid?

Look at the picture and find out which square is not linked with any of the other squares.

Which English verb becomes past tense just by rearranging the letters?

How can I get the answer 24 by only using the numbers 8,8,3,3?

You can use the main signs add, subtract multiply and divide.

I’m tall when I’m young, and I’m short when I’m old. What am I?

In which direction should the missing arrow point?

An infinite number of mathematicians are standing behind a bar. The first asks the barman for half a pint of beer, the second for a quarter pint, the third an eighth, and so on. How many pints of beer will the barman need to fulfill all mathematicians' wishes?

Solve the rebus riddle in the picture below.