You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

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

A boy purchased a book from a bookkeeper and gave him $100.
The cost of the book is $50 but the bookkeeper has no change, so he gets the change from the next shop and returns the boy his $50.

After some time the next shopkeeper came with the $100 note and told the bookkeeper that the note was a fraud, so he took the money back.

How much loss did the bookkeeper face?

Which five letter word can be added at the end of below word to form a
valid word?

> Pin
> Check
> Boiling
> View

What does this mathematical rebus means ?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

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?

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. 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.