A man dies of old age on his 25 birthday. How is this possible?

What type of tree can I carry in my hand?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

After a heavy Thanksgiving meal, the night watchman went to work. In the morning, he told his boss he had dreamed that a saboteur planted a bomb in the factory and that he felt it was a warning. The boss promptly fired him. Worker confused, Why boss fire him?

0 0 0 = 6
1 1 1 = 6
2 2 2 = 6
3 3 3 = 6
4 4 4 = 6
5 5 5 = 6
6 6 6 = 6
7 7 7 = 6
8 8 8 = 6
9 9 9 = 6

You can use any mathematical symbols in the space provided to make all above algebraic expressions true.

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?