What does below chemistry rebus means?

Two men play a dice game involving roll of two standard dice. Man X says that a 12 will be rolled first. Man Y says that two consecutive 7s will be rolled first. The men keep rolling until one of them wins.

What is the probability that X will win ?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

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

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

A blonde put eyeliner on her head. Why?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?