I look at you, you look at me, I raise my right, you raise your left. What am I?

It belongs to you, but other people use it more than you do. What is it?

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

Replace the question mark with the correct number.

A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396.

What is the sum of the three digits?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

What four weights can be used to balance from 1 to 30 pounds?

Can it be possible to build a house that has all its four walls facing towards the South?