What word does this rebus represent?

meta meta
meta meta

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

What goes through cities and fields, but never moves?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

How many words can a pen with half refill write?

what does this below rebus represent identXQQQQQME

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

A father's child, a mother's child, yet no one's son.

Who am I?

Christina is older than Kareena and Karishma. Katrina is older than Karishma and younger than Kareena. If Kareena has a brother named John, who is older than Christina, who's the youngest?

Andrew sees a very rare bird named "Ruppell's vulture". Soon Andrew was dead. Can you explain the mystery, Mr. Sherlock?