what does the below rebus means?

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?

What type of curtain does this rebus mean

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?

How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?

What has lots of eyes, but can’t see?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

I am sometimes honest
Sometimes dishonest
I can be sweet and also bitter
I can hurt you real bad and
also make u smile and blush ☺️
What am I?

I have no life, but I can die. What am I?

I am written with two letters.
I said with the one.
I usually am seen with the two.

Who am I?