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?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

What kind of storm is always in a rush?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

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

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?

Move four matchsticks to the below square to form three squares?

What do you think with the below Picture ?