What does below chemistry rebus means?

Which is faster, Heat or Cold ? Explain.

After a heavy Thanksgiving meal, the night watchman went to work. In the morning, he told his boss he had dreamed that a saboteur planted a bomb in the factory and that he felt it was a warning. The boss promptly fired him. Worker confused, Why boss fire him?

Prove that the below maths equation is true.

8 + 8 = 91

What does the below image rebus riddle means ?

What has many teeth, but cannot bite?

How many triangles can you count in the figure given?

In the given picture, in how many ways can you read the word "Tiger"?

How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?

Alex opened 24 presents
Jonah opened 8 presents
Clara opened 1 present

Can you find out how many presents were opened by Candy?