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

A police officer was passing by when he saw a guy hiding. He walked up to him and genially asked, "What is your name?"

"Shut up!" the boy responded.

"Where are your manners?" asked the outraged police officer.

"Up that tree," said the boy discourteously, directing to a neighbouring tree.

You're looking for trouble, aren't you?" said the police officer.

"No, trouble is looking for me!" the boy answered solemnly.

Why is the boy behaving like this?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

What is at the end of a rainbow?

You are stuck on an island where you have nothing. You find four pieces of paper somewhere on the island. What will be your strategy to escape from the island safely?

PS: No other resource is available to you on the island, neither can you build anything.

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

If a wheel has 54 spokes, how many spaces are there between the spokes?

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.