How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

What Adam and Eve do not have but the rest of the people have?

You can hear me, but you can't touch or see me.

What am I?

What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?

what does the below rebus means?

How many times in a given day, minutes and hour clock comes in a straight line ?

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside.
The man said, "Oh! I am really sorry, I thought this was my room."
He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man.
What made her suspicious of that man? He might have been genuinely mistaken.