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

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

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

Two girls were born to the same mother, on the same day, at the same time, in the same month and year and yet they're not twins. How can this be ?

Using eight eights and addition only, can you make 1000?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

Remove two matchsticks to make the below equation correct.

Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?