Logic
A father's child, a mother's child, yet no one's son.
Who am I?
A daughter.
Round and thin, red within, with a nail at the end. What am I?
A finger.
The more there is, the less you see.
Darkness.
What has to be broken before you use it?
An egg.
If you multiply this number by any other number, the answer will always be the same. What number is this?
Zero.
There are eight brothers in a family and each of them has a sister. How many children are there in the family?
Nine. (eight brothers and one sister)
What can you catch, but not throw?
A cold.
If I drink, I die. If I eat, I'm fine. What am I?
A fire.
What is never eaten before lunch?
Dinner.
What is half of two plus two?
I make two people out of one.
What am I?
A mirror.
I'm tall when I'm young and short when I'm old. What am I?
A candle.
What can run, but never walks?
A river.
I am a bird. I am a fruit.
Kiwi.
How many 9's are there between 1 and 100?
20
It occurs once in a minute, twice in a moment, but never in an hour.
The letter M.
What can fly but has no wings?
Time.
What flowers have two lips?
Tulips.
Squeeze it and it cries tears as red as its flesh. Its heart is made of stone.
Cherry.
X is an odd number. Take a letter away from X and it becomes even. Which is the number?
Seven. ("Seven" - letter "S" = even)
A prisoner is told: "If you tell a lie, we will hang you. If you tell the truth, we will shoot you." What did the prisoner say to save himself?
You will hang me.
It belongs to you, but other people use it more than you do. What is it?
Your name.
Echo.
I am a seed with three letters in my name. If you take away the last two, I'll stay the same. What am I?
A pea.
What did one math book say to another?
I have so many problems.