What will you call your mother's brother's brother-in-law?

Bay of Bengal is in which state?

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?

I am a type of word that is spelt incorrectly or used differently, on purpose for humour. What am I?
Hint 1: You can find me in a joke.
Hint 2: I am a play on words.

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

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

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

Our product and our sum always give the same answer. Who are we?