I have feet, but no legs. Which animal Am I?

I look at you, you look at me, I raise my right, you raise your left. What am I?

Next Number in the Series,

5, 16, 49, 104, ?

How can you take 2 from 5 and leave 4?

Name a key which is hardest to turn.

As we know that white starts the game of chess. Can you find the scenario shown in the picture below is possible when all the white pieces are at the original place while the black pawn is not as in the below picture?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

why number 8549176320 is one of a kind?

There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?

Can you decipher the below rebus?

PBLUESAISNUERSES