What is the word or phrase?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

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

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

What does below science rebus mean?

Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag

If Japan and Panama decided to merge into a single country, probably people will name it Japanama.

Can you think of two more such country's unions that could produce similar names like Japanama by overlapping their three letters?

A boy and his father are caught in a traffic accident, and the father dies. Immediately the boy is rushed to a hospital, suffering from injuries. But the attending surgeon at the hospital, upon seeing the boy, says 'I cannot operate. This boy is my son.' How is this situation explained?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?