If you say my name, I will no longer exist. What am I?

Which wheel of car does not rotate when you turn your car right?

Which tank will fill first?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

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?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?

Can you solve below mathematical equation?

2^1234 - 2^1233

What do you call a fish without an eye?

What number divided by 4 is the same as that number minus 4?