Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

I am a mother. However, I never give birth.

I am a father. However, I never nurse my children.

Wandering is not possible for me, but standing still happens occurs rarely.

Who 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?

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

I am green and found in the forest and have needles instead of leaves. What am I?
Hint 1: It can be used for Christmas decorations.
Hint 2: I have a strong, scent that is used in air fresheners.

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

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