First, think of the colour of clouds. Next think the colour of snow. Last, think of the colour of the moon. Now, what do cows drink?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

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.

No matter how little or how much you use me, you change me every month. What am I?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

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.

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.

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

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

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?