What happened when the wheel was invented?

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

What is the longest word in the dictionary?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

what's the probability of getting a king or a queen from a pack of 52 cards?

What has lots of eyes, but can’t see?

If two's company, and three's a crowd, then whats four and five ?

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?

Pronounced as 1 letter, And written with 3, 2 letters there are, and 2 only in me. I’m double, I’m single, I’m black blue and grey, I’m read from both ends, and the same either way. What am I?