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

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

Count the Triangle in the figure given below:

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

Six glasses are in a row. The first three are filled with milk and the last three are empty. By moving only one glass, can you arrange them so that the full and the empty glasses alternate?

What have one eye but still cannot see?

Find out which of the given views in the picture is accurately the top view of the given pyramid.

There’s a girl who has a large family. She has an equal amount of brothers and sisters, but each brother only has half as many brothers and sisters. What’s the correct amount of brothers and sisters?

I’m tall when I’m young, and I’m short when I’m old. What am I?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?