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

Name a key which is hardest to turn.

Count the number of balls in picture below:

If you go to the movies and you're paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at the same time?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

Identify Me

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

When monkey rotate the gear, which mark will be hit 1 or 2 ?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?