Keyboard words are not in alphabetical order, Why?

I am white when I am dirty, and black when I am clean. What am I?

Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters?

Can you write down eight eights so that they add up to one thousand?

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?

Below rebus represent famous DiCaprio movie. Can you name it?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

What kind of storm is always in a rush?

I taste better than I can smell. Who am I?