What is in seasons, seconds, centuries and minutes but not in decades, years or days?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

What word does this rebus represent?

meta meta
meta meta

why number 8549176320 is one of a kind?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

What does this Rebus Picture mean?

If a zookeeper had 100 pairs of animals in her zoo, and two pairs of babies are born for each one of the original animals, then (sadly) 23 animals don’t survive, how many animals do you have left in total?

Take number 1000 and then add 20 to it.
Now add 1000 one more time.
Now add 30.
Now add 1000 one more time.
Now add 40.
Now add 1000 one more time.
Now add 10.

What is the total?

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?