I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

What is the next number in this series?

4,12,84,3612....

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

I am a ten letters word
The first four letters have the power to rule,
Next, four-letter can be eaten.
The next three-letter represents a lady.
I can fly as well

what am I looking for?

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

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

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

what does the below rebus mean?

I am quite hot but become too cold if you remove the first two letters. What am I?