I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

A man had five children. He had $100 with him to give to his children. He decided to start with the youngest child and then give $2 more than each younger child to his next elder child.

For example, if he gives $x to the youngest child, he will give $(x+2) to the next one, $[(x+2) + 2] to the next one and so on.

Can you find out how much did the youngest one receive?

How many triangles can you find in this given picture?

Can you solve the rebus below?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

It has five wheels, though often think four, You cannot use it without that one more, You can put things in it, you can strap things on top, You can't find it in the market, but you can still go shop. What is it?

What word is represented by this rebus?