Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

I am sure no one can have two things for dinner. what are they?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

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

What can you hold in your right hand, but never in your left hand?

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1