How can you write nineteen in a manner that if we take out one, it becomes twenty?

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?

I am a five-letter word under you,
Remove the first letter and I am above you,
Remove the second as well and I am around you.

Who am I?

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

Can you find out who is the kidnapper in below Picture and why, Explain ?

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Can you count the number of matches in the picture below ?