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

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

How many triangles can you find in this given picture?

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

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?

Can you identify the hidden rebus in the image below?

Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.

A person was found dead on a big green land with no trees or buildings around. When the police arrived, they found a piece of rock lying next to him and the man was wearing clothes comprising of red, blue and yellow colours.

Can you tell who the person is and what was the cause of death?

What is the difference between a jeweller and a jailer?

My location can be determined by the below rebus.
So where am i ?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?