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

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

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

Create a number using only the digits 4,4,3,3,2,2,1 and 1. So i can only be eight digits. You have to make sure the ones are separated by one digit, the twos are separated by two digits the threes are separated with three digits and the fours are separated by four digits

How many Watermelons are there in the below picture?

Solve the mathematical equation in the picture below.

What do you think with the below Picture ?

You need to move three matchsticks to form three squares. Can you do it?

What four weights can be used to balance from 1 to 30 pounds?

Remove two matchsticks to make the below equation correct.

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135