A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

A man is found hanging dead from the ceiling of a room. The room’s dimensions are 15 x 15 x 15. The man is only 6ft tall and the rope was only 2ft long. There are no windows and only one door to the room. The door is bolted shut from the inside, and a puddle of water is under the man. How did he kill himself?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

I look at you, you look at me, I raise my right, you raise your left. What am I?

Can you count the number of matches in the picture below ?

Two Twins Jack and Jill were standing back to back and suddenly they started running in opposite direction for 4 kilometres and then turn to left and run for another 3 kilometres.

what is the distance between the Baggio twins when they stop ?

I know a nine-letter word having only one vowel.
Do you ?