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?

Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?

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

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

I have eight fingers and two thumbs but I do not live. What Am I?

There are three boxes of different sizes with three cupcakes inside each of the boxes in Christina's kitchen. At night her daughter wakes up and goes to the kitchen. She opens a box and eats all three cakes.

But in the morning Christina finds out that each box still had three cupcakes. How?

I can write cow in 13 letters.

Can You?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

What goes up but never comes down?