I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

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

When did John make this statement?

What kind of band never plays music?

What number when divided in half becomes zero?

What is the fastest way to double your money?

John went to a parrot shop in Mexico, and the parrot owner told him that his parrot is so unique that he repeats everything he hears. John got excited and immediately bought the parrot. John went home and spoke many words, but the parrot does not repeat anything.
He went again to the parrot shop and complaint to the shopkeeper, but the shopkeeper never lied. Explain?

How many letters are in the alphabet?

Who is that with a neck and no head, two arms and no hands? What is it?

How can a man go eight days without sleep?

Three playing cards in a row. Can you name them with these clues? There is a two to the right of a king. A diamond will be found to the left of a spade. An ace is to the left of a heart. A heart is to the left of a spade. Now, identify all three cards.