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

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

What is at the end of a rainbow?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

A man is looking at a photograph of someone. His friend asks who it is. The man replies, “Brothers and sisters, I have none. But that man’s father is my father’s son.” Who was in the photograph?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

In an Art Gallary, When the clock hit 11 am, Artist hung the painting number 30. When it struck 4 pm, he hung painting number 240 and when it struck 7:30 pm, he hung painting number 315.

Can you determine, which painting number will he hang when the time is 9:20 pm?

10+10 and 11+11 can give you the same answer.

Explain how?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

Can you start the fire using two pieces of wood?

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?