Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

It spends most of its day eating white, but when it’s quick enough, it gets to eat fruit and sometimes some blue things. It’s in a dark room, where the walls are blue, it runs from a ghost that roams the halls and haunts it all the time. What is it?

A man died and leaves Rs.10,000 in his will. There are 6 beneficiaries- his 3 sons and their wives. The 3 wives receive Rs.3960 of which Priyanka gets Rs.100 more than Tanu and Neha gets Rs.100 more than Priyanka.
Pramod gets twice as much as his wife, Tushar gets the same as his wife, and Prashant gets 50% more than his wife.

Who is married to whom?

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

What am I?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

What's the only room from which no one can enter or leave

What has one eye, but can’t see?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

There are two dice with empty faces in front of you and a marker. You can mark any number on each of the faces of the two dice, but you have to display all 31 days of the month using the two of them.

Which numbers will you mark on which dice so that you can easily depict all the dates of the month?

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