I shave every day, but my beard stays the same. What am I?

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?

You can hear me, but you can't touch or see me.

What am I?

Can you find the dog hidden in a group of pandas?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

What does this rebus puzzle means ?

Jessica is telling her friends this story and asks them to guess if it’s the truth or a lie: “There was a man sitting in a house at night that had no lights on at all. There was no lamp, no candle, and no other source of light. Yet, he sat in the house and read his book happily.” Her friends say she’s lying, but Jessica corrects them and says she’s telling the truth. Jessica’s story is true—but how?

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

What seven-letter word has hundreds of letters in it?