In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

What is the riddle which can be asked all day with a different correct answer each time.

Replace the question mark with the number below given a simple math problem.

John was so frustrated to be the suspect of being a sleeper terrorist that he shoot himself right between the eyes with a revolver in his toilet. The revolver and the bullets were accurate. Minutes later John walks out of the toilet unharmed.
How can this be possible?

A high school has a strange principal. On the first day, he has his students perform an odd opening day ceremony:

There are one thousand lockers and one thousand students in the school. The principal asks the first student to go to every locker and open it. Then he has the second student go to every second locker and close it. The third goes to every third locker and, if it is closed, he opens it, and if it is open, he closes it. The fourth student does this to every fourth locker, and so on. After the process is completed with the thousandth student, how many lockers are open?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

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?

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

Why is 6 afraid of 7?