When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

What does an Island and the letter T have in common?

I am white when I am dirty, and black when I am clean. What am I?

Can you spot the man between the coffee bean in the picture below ?

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

You are mixing a mixture of cement and Sand with five gallons of water. You have a garden hose giving you all the water you need. The problem is that you only have a four-gallon bucket and a seven-gallon bucket and neither has graduation marks. Find a method to measure five gallons.

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

A blonde put eyeliner on her head. Why?

Two boys were admitted to a school. When the headmaster asks them about their parents, they tell him that they have same parents (father and mother). On further inquiry, it turns out that they both share the same date for their birthday.

"Are you twins," ask the headmaster.
"No," replies the boys.

Is it possible?

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

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