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?

Why did the Girl throw the butter out of the window?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

Solve the following series:
AZ, GT, MN, __, YB

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

What does below Rebus mean ?

esgg sgeg gegs gsge

Why are all black people so quick ?