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

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

I know there are two methods by using three time the same number with a plus(+) operator , you can make sum as 60.

One of them is 20+20+20.

whats the other way ?

Solve The below Equation:

ALFA + BETA + GAMA = DELTA

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

There is a place where if I stand up straight, I will still be considered sideways.

I am a five-letter word and people eat me. If you remove the first letter I become an energy form. If you remove the first two letters, I am needed to live. Scramble the last three letters and I am a drink. What word am I?

What does does this rebus picture means ?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

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