Can you find a number that lies one third of the distance between 1/3 and 2/3?

Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3.

(You can use one number only once)

Identify Me

Hint1: I am a god
Hint 2: I am a planet
Hint 3: measurer of heat

What has to be broken before you can use it?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

Spot what is wrong here in below Picture?

What does it mean?

You are trapped in a room with two doors. One leads to certain death and the other leads to freedom. You don't know which is which.
There are two robots guarding the doors. They will let you choose one door but upon doing so you must go through it.
You can, however, ask one robot one question. The problem is one robot always tells the truth, the other always lies and you don't know which is which.
What is the question you ask?

What building has the most stories?

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?