I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

You are in a land where thirty men and two women were dressed in classic black and white dresses.
They begin to fight as soon as any of them move.

Where are you?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

I look at you, you look at me I raise my right, you raise your left. What am I?

It is a nine-letter word.
The exact opposite of the phrase "friendly and outgoing"
It contains the word "over".
It starts will a vowel.

What is it?

Can it be possible to build a house that has all its four walls facing towards the South?

With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might; physically joining with a single bite. What am I?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?