Can you fill the blank with the correct number?

6 30 870 756030 _____

The more of this there is, the less you see. What is it?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

A bomb exploded in a room full of married couples and no one died. How?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

Find the missing letter in the last circle logically in the given below picture.

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

It belongs to you, but other people use it more than you do. What is it?

What does an Island and the letter T have in common?

If your uncle’s sister is not your aunt, what relation is she to you?