What does this Rebus Picture mean?

What is harder to catch the faster you run?

What is the centre of gravity?

Kohli and Dhoni decided to have a paintball match.
Kohli told Dhoni, "Sir it is not right as you got thrice the paintballs I have".

Dhoni instantly gives Kohli 10 hit paintballs.
Kohli replied, "Sir, I believe you still have twice the paintballs than I have".

Dhoni gives "?" more paintballs to Kohli.
Kohli replied, "Sir it is even now, Let us have a match".

What is "?".

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

How can you leave a room with two legs and return with six legs?

Who are the happiest people in IPL match?

How many triangles can you find in this given picture?

What does below rebus means ?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?