A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

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?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

Which letter of the alphabet has the most water?

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

I am a type of word that is spelt incorrectly or used differently, on purpose for humour. What am I?
Hint 1: You can find me in a joke.
Hint 2: I am a play on words.

I am thinking of a five-digit number such that:
The first and last digits are the same, their submission is an even number and multiplication is an odd number and is equal to the fourth number. Subtract five from it and we obtain the second number. Then divide into exact halves and we get the 3rd number.

What number I am thinking of?

What number do you get when you multiply all of the numbers on a telephone's number pad?

Can you divide the below-given shape into four equal and identical pieces?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?