I know a nine-letter word having only one vowel.
Do you ?

What number should come in place of the question mark below?

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?

It's pretty hard to give up.
If you remove a part of it, you will be left with a bit.
Even if you remove another part, the bit still remains.
Remove one more and it still remains.

What is it?

Can you make four (4) nines (9) equal 100?

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?

What does this rebus puzzle means ?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

If,

1 = 5 ,
2 = 25 ,
3 = 325 ,
4 = 4325

Then, 5 = ?