I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

A king sentenced a man to the death sentence for some crime he had committed. Known for his kindness, the king told the culprit that he had a choice to die in a way he decides.

The culprit was clever and said something that saved him from death. What method do you think he must have chosen for his death?

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?

What is the largest number you can write with just 3 digits?

How can a man go eight days without sleep?

Which English verb becomes past tense just by rearranging the letters?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

what does this below rebus represent identXQQQQQME

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?