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

Assume the given figure to be a delicious doughnut. Yes, now you can concentrate more on the puzzle. So you have this delicious doughnut in your refrigerator when your friends come knocking at the door. There are eight of them. Now you have to make three cuts in this doughnut so that each one of you nine people can enjoy a piece of it. Neither you nor your friends would mind the size of their piece as long as they are getting it. How will you do it?

How many times do a clock's hands overlap in a day ?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

Find the next number in the series below

21 32 54 87 131 ?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

What two things can you never eat for breakfast?

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

Can you find the 09 errors in the picture below?

John speaks the truth only once a day in a week. Below are a few hints for you:

First: Days are Sunday, Monday and so on.
Second: One day he says, "I lie on Monday and Tuesday".
Third: On the next day, he says, "Today is either Thursday, Saturday or Sunday".
Fourth: On the next day, he says, "I lie on Wednesday and Friday".

Can you identify the day on which he speaks the truth?