Why Wine Glass Stem is so long?

Two friends were betting. One said to the other, "The coin will be flipped twenty times and each time the coin lands on the head, I will give you $2 and each time it lands on the tale, you will give me $3." After flipping the coin twenty times not a single penny was exchanged among them.

How many times did the coin land on heads?

Before reading ahead, you must know the fact that only one of the people here is telling the truth.

A says that B is lying.
B says that C is lying.
C says both A and B are lying.

Can you find out who is speaking the truth?

What is the word or phrase?

Which alphabet letter is a question?

A deaf and mute man goes to the train station. Tickets for the train are 50 cents each. The man goes to the ticket booth and hands the man inside just a dollar. The man in the booth hands him two tickets.

How did the man in the booth know to give him two tickets without even looking at him?

What 5-letter word typed in all capital letters can be read the same upside down?

What will you call your mother's brother's brother-in-law?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

If your uncle’s sister is not your aunt, what relation is she to you?