Can you place three balls such that the equation shown in the picture holds true?

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?

Paul's height is six feet, he's an assistant at a butcher's shop and wears size 9 shoes. What does he weigh?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

What has many teeth, but cannot bite?

I am a type of word that is spelt incorrectly or used differently, on purpose for humour. What am I?
Hint 1: You can find me in a joke.
Hint 2: I am a play on words.

An exterior architect is asked by a builder to plant seven trees in a manner that there are exactly six rows of trees in a straight line and each row has three trees in particular.

How will he do it?

What word is identified by the below rebus?

Your Your Your Your Your
Your Your Your Your Your

What has one letter and starts with an E?