What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

What runs around the whole yard without moving?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

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.

I am an odd number. Take away a letter and I become even. What number am I?

John was drowned by he was not wet. How?