If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

I have eight fingers and two thumbs but I do not live. What Am I?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

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?

Replace the question mark with the correct number.

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

What Adam and Eve do not have but the rest of the people have?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?