Out of four images which one is the odd one out?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

Why are all black people so quick ?

A Scientist was fifty years old in the year 2000 but he was forty years old in the year 2010. How can this be possible?

PS: It has a logical answer.

Which fur should we be getting from the Lion?

What time is it when an elephant sits on a fence?

What is the centre of gravity?

The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

Which English verb becomes past tense just by rearranging the letters?