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

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

Solve the puzzle by telling what does below picture means.

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

There were two grandmothers and their two granddaughters.
There were two husbands and their two wives.
There were two fathers and their two daughters.
There were two mothers and their two sons.
There were two maidens and their two mothers.
There were two sisters and their two brothers.
Yet there are only six, who are buried here,
All are born legitimate and relationships clear.
How can this happen?

Why is the Hole below a Lock?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

This is a simple one. You just have to count the number of Fs in the given sentence.

Finished Files are the result of years of scientific study combined with the experience of years.

How many did you count?

What is the end of everything?

If eleven plus two equals one, what does nine plus five equal?

Can you solve this picture maths equation?