I taste better than I can smell. Who am I?

There are 3 apples in the basket and you take away 2. How many apples do you have now?

I shave every day, but my beard stays the same. What am I?

A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396.

What is the sum of the three digits?

Buy me, smell me or deliver me, I do not change.

Who am I?

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?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

John was working on a Chemical Mixture whose weight comprise 90% liquid and 10% solid. The total weight of the mixture is 20 pounds. After a while, John noticed that some of the liquid evaporated and now the liquid comprises just 50% of the weight.

What is the weight of the chemical mixture now?

Name a key which is hardest to turn.