What does below rebus means ?

what's the probability of getting a king or a queen from a pack of 52 cards?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

How many runs at maximum can a batsman score in a normal one-day match? Consider the fact that the conditions are ideal and there are no No Balls, no Wide Balls and no Extras in that match.

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

what does the below math rebus puzzle mean?

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?