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

What word is represented by this rebus?

I have branches, but no fruit, trunk or leaves. What am I?

A father told his three sons he would die soon and he needed to decide which one of them to give his property to. He said, “Go to the market and buy something large enough to fill my bedroom, but small enough to fit in your pocket. From this, I will decide which of you is the wisest and worthy enough to inherit my land.” They all went to the market, and each came back with a different item. The father told his sons to come into his bedroom one at a time and try to fill up his bedroom with their items. The first son came in and put some pieces of cloth he bought and laid them across the room, but it barely covered the floor. The second son came in and laid some hay on the floor, but there was only enough to cover half the floor. The third son came in and showed his father what he bought. He wound up getting the property. What did the third son show his father?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

What do you think with the below Picture ?

There was once a college that offered a class on probability applied to the real world. The class was relatively easy, but there was a catch. There were no homework assignments or tests, but there was a final exam that would have only one question on it. When everyone received the test paper it was a blank sheet of paper with a solitary question on it: 'What is the risk?'.Most students were able to pass, but only one student received 100% for the class! Even stranger was that he only wrote down one word!
What did he write?

The Little ant seems to be always confused. Do you know why?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?