What does the below image rebus riddle means ?

You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?

What am I?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

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?

There is a box in which distinct numbered balls have been kept. You have to pick two balls randomly from the lot.

If someone is offering you a 2 to 1 odds that the numbers will be relatively prime, for example
If the balls you picked had the numbers 6 and 13, you lose $1.
If the balls you picked had the numbers 5 and 25, you win $2.

Will you accept that bet?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

Can you make four (4) nines (9) equal 100?

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?