What does this mathematical rebus means ?

The more you take me, the more you leave me behind.
Who Am I?

What word does this rebus represent?

meta meta
meta meta

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

No matter how little or how much you use me, you change me every month. What am I?

If we change the South-East direction into North and North-East into West and all others similarly.
Can you find out which direction will be in the place of South-West direction?

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

Two men play a dice game involving roll of two standard dice. Man X says that a 12 will be rolled first. Man Y says that two consecutive 7s will be rolled first. The men keep rolling until one of them wins.

What is the probability that X will win ?

Can you find out the total number of triangles in the given figure?