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?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

Steffi's daughter Jazelle needs to be picked up from school every day.
Steffi asks one of her colleagues to pick up Jazelle from the school. Steffi devised a password system to confirm that Jazelle goes with the correct colleague only.

The password on Monday was SJM16.
The password on Wednesday was TAW39.

What will the password be for Friday?

What do you answer even though it never asks you questions?

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?

I am a mother. However, I never give birth.

I am a father. However, I never nurse my children.

Wandering is not possible for me, but standing still happens occurs rarely.

Who am I?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

If 1+9+8=1, what is 2+8+9?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

What can go up a chimney down, but can’t go down a chimney up?