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

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

How can I get the answer 24 by only using the numbers 8,8,3,3?

You can use the main signs add, subtract multiply and divide.

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

Identify The phrase in the picture.

It has five wheels, though often think four, You cannot use it without that one more, You can put things in it, you can strap things on top, You can't find it in the market, but you can still go shop. What is it?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

Imagine you are in a room with no windows or doors. How will you get out?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.