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

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

Find the number of squares in the below-given picture.

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

What do you think with the below Picture ?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

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

The current time can be represented by below textual rebus.

0
=========
B.Sc
LLB

Can you tell us the current time?

Out of the nine cats that you can see in the picture, there are only two that are completely identical. Can you find them out?

While preparing the table for dinner, wife came up with an idea to tease his mathematician husband. She asked her husband to pick nine toothpicks and make ten without breaking any toothpick.

The husband was also smart and did it within seconds. How ?