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

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?

A B C D E F G H

These are the letters given to you. Now you have to find out the letter that comes two to the right of the letter which is immediately to the left of the letter that comes three to the right of the letter that comes midway between the letter two to the left of the letter C and the letter immediately to the right of the letter F.

Solve The below Equation:

ALFA + BETA + GAMA = DELTA

What makes this number unique: 8,549,176,320?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

You are playing a game with your friend Jack. There are digits from 1 to 9. You both will take turn erasing one digit and adding it to your score. The first one to score 15 points will win the game.

Would you want to play first or second?

PS: The sum should be exactly 15.

I have branches, but no fruit, trunk or leaves. What am I?

Which flower has two lips?