What work can one never finish?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

What is the Surname of Barbie Doll?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

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?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

If a wheel has 54 spokes, how many spaces are there between the spokes?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

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