Why do people go to bed?

Can you guess the name of the month by looking the below rebus ?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

The answer I give is yes, but what I mean is no. What was the question?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

How many times can you subtract the number 5 from 25?

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?