I am soft and cuddly that soothe your heart. But, If you pick my last name I am going to tear you all apart. Who am I?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

Take away the whole and some still remain. What is it?

When is the top of a mountain similar to a savings account?

Count the number of squares in the picture below.

What's a single-digit number with no value?

Why are all black people so quick ?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

Can you find out the remainder when 3^300 is divided by 5?