In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.

Can you calculate the percentage of students that study all four subjects?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

With the help clues provided in the image, can you find the 5 digit key?

Forwards I am heavy, backward I am not. What am I?

What has 88 keys?

Can you Find and name the hidden bird in the picture below ?

What is the word or phrase?

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.

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?