In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

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

How can this be possible?

Look at me. I can bring a smile to your face, A tear to your eye, Or even a thought to your mind. But, I can't be seen. What am I?

I have teeth but i don't bite. Who Am I ?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

There are two guys standing face to face in a room. On a wall, there is a clock. One of those is a prophet. He tells the other guy that he will be stabbed in the back in five minutes.

Shocked to hear that, the other guy stares at the clock. Just after the five minutes, he is stabbed on the back. Can you tell what happened?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

John is a strange liar.

He lies on six days of the week, but on the seventh day, he always tells the truth.

He made the following statements on three successive days:

Day 1: "I lie on Monday and Tuesday."
Day 2: "Today, it"s Thursday, Saturday, or Sunday."
Day 3: "I lie on Wednesday and Friday."

On which day does John tell the truth?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

Can you find the missing piece of the Porsche?