Can anyone tell me a word in the English dictionary which has a silent 'z'?

When 99 is considered higher than 100?

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?

Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"

how come the second man dies?

Can you decipher the below rebus?

PBLUESAISNUERSES

What do you get if you add 2 to 100 four times?

Look at me. I can bring a smile to your face, A tear to your eye, Or even a thought to your mind. But, I can't be seen. What am I?

Why is Saturday stronger than Monday?

Why is the Hole below a Lock?