I have branches, but no fruit, trunk or leaves. What am I?

What is the riddle which can be asked all day with a different correct answer each time.

Why is 6 afraid of 7?

what's the probability of getting a king or a queen from a pack of 52 cards?

What goes up but never comes down?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters?

Next Number in the Series,

5, 16, 49, 104, ?

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?

Two friends Smith and Andrew were talking about the bravery of their families. Smith told great stories about his courageous grandfather who fought for Britain in "World War I". Andrew told that his grandfather was so brave that in 1919 just after the war he was honoured with a bravery medal with the words "For our Courageous Soldiers In World War I" embedded into it. Smith knows that his friend is lying. How?