It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

Prove that twice of ten is the same as twice of eleven.

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

What is the word or phrase below?
R | E | A | D

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

Why is the Hole below a Lock?

Four men were in a boat on the lake. The boat turns over, and all four men sink to the bottom of the lake, yet not a single man got wet! Why?

What does this Rebus Picture means ?

What brings you down but never up?