Keyboard words are not in alphabetical order, Why?

What does a man do only once in his lifetime, but women do once a year after they are 29?

I don't get anymore wetter, no matter how much rain falls on me.

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different. How do you measure 45 minutes?

What has lots of eyes, but can’t see?

Replace the question mark with the correct number.

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 "?".

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

A quarter is one-fourth of a dollar but Mr. John has changed the equation as below :

DOLLAR * 4 = QUARTER

Can you replace each letter with a digit to make the above solution correct?