Eight of us go fourth, not back, to protect our king from an attack. What are we?

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?

A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

Make a sentence consisting of three words that have the whole alphabet.

Mr Red Lives in the red house.
Mr Green Lives in the greenhouse.
Mr Yellow Lives in the yellow house.

Who lives in the Whitehouse?

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

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

Why is it against the law for a man living in Delhi to be buried in Mumbai?

Count the number of lines in the image below ?

A man fell off a smuggling boat into deep water. He could not swim and he was not wearing anything to keep him afloat. It took 30 minutes for the people on the boat to realize someone was missing. The missing man was rescued two hours later on the return trip. Why didn't he drown? Note:- He didn't know swimming, the sea was deep, and He wasn't holding anything