Can you fill the blank with the correct number?

6 30 870 756030 _____

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

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?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

What Adam and Eve do not have but the rest of the people have?

A new clothing store has a unique method of pricing items. A vest costs $20, a tie costs $15, a blouse costs $30, and underwear costs $45. How much would pants cost?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

Why is Saturday stronger than Monday?