Clean riddles for teens with simple answers

I’m at the beginning of the end and the start of eternity, at the end of time and space, in the middle of yesterday but nowhere in tomorrow. What am I?

Red through and through, it has no mouth. But it eats many things; it fears water but not wind.

Our dinner guests cry that we are evil, when they notice their place in the meal. But its no big deal why; we are just one big happy tribe! And we get really fed up with people! Who, What or Are we?

Every time you stand up, you lose this. What is it?

I'm very, very big. I like to eat peanuts and hay. I have four legs and two big ears. My long nose is called a trunk. I am an...

It is impossible to keep it until you give it someone else. What is that?

I build up castles. I tear down mountains. I make some men blind, I help others to see. What am I?

What is so delicate that saying its name breaks it?

What is the shortest complete sentence in the English language?

I am slim and tall, many find me desirable and appealing, they touch me and I give a false good feeling, once I shine in splendor, but only once and then no more, for many I am "to die for".