What word does this rebus represent?

meta meta
meta meta

I have branches, but no fruit, trunk or leaves. What am I?

Name a key which is hardest to turn.

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

why number 8549176320 is one of a kind?

Two guards were guarding the camp.Guard-1 was looking towards the south to make sure no threat is coming from the road.Guard-2 was looking at the north to make sure no threat is coming from the top. Suddenly Guard-1 ask the Guard-2 why he is smiling?How Guard-1 knows that Guard-2 is smiling?

What jumps when it walks and sits when it stands?

A man had five children. He had $100 with him to give to his children. He decided to start with the youngest child and then give $2 more than each younger child to his next elder child.

For example, if he gives $x to the youngest child, he will give $(x+2) to the next one, $[(x+2) + 2] to the next one and so on.

Can you find out how much did the youngest one receive?

In the given picture, in how many ways can you read the word "Tiger"?

Find the next number in the series below

21 32 54 87 131 ?