I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

O_er_t_o_

Complete the missing letters of the given word.

A wooden log balances equally on the scales when weighed with three-quarters of a pound and three-quarters of a wooden log.

Can you calculate the weight of the entire wooden log?

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

I am a type of food that is often found in the fridge and can be white in colour. What I am?
Hint 1: I am a dairy product.
Hint 2: You can spread me on the bread.

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

The more of this there is, the less you see. What is it?

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

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?