What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

what one word does the below rebus identifies?

Find the next number in the series.
1 10 24 43 67 ?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

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

A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

During which month do people sleep the least?

Jigsaw captured 100 people and make them stand in a circle and all these people are labelled as Person1, Person2, Person3... Person100. He made them play a crazy game in which Person 1 shot Person 2 and pass the gun to the next person and so on until one stands alive.

Which person will survive in the end?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?