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

You bought me for dinner but never eat me. What am I?

There are people and strange monkeys on this island, and you can not tell who is who (Edit: until you understand what they said - see below). They speak either only the truth or only lies.
Who are the following two guys?
A: B is a lying monkey. I am human.
B: A is telling the truth.

John is 45 years older than his son Jacob. If you find similarities between their ages, both of their ages contain prime numbers as the digits. Also, John's age is the reverse of Jacob's age.

Can you find their ages?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

f you were running a race, and you passed the person in 2nd place, what place would you be in now?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

Do You See It?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?