The centre of the third figure is empty. What digit should fit inside?

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

A worker is to perform work for you for seven straight days. In return for his work, you will pay him 1/7th of a bar of gold per day. The worker requires a daily payment of 1/7th of the bar of gold. What and where are the fewest number of cuts to the bar of gold that will allow you to pay him 1/7th each day?

People put me on the table and cut me but do not eat me. What am I?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

A man escapes from jail using help from his girlfriend. The investigators suspect four girls of being the man's girlfriend.

Out of those four girls, one is his girlfriend who is lying. Two of the girls are completely innocent and are speaking the truth. One of the girls is the man's sister who is helping the girlfriend lie. Following are the statements from all four of them:

Ariana: "Myrna is his girlfriend."
Jane: "Angelina is lying."
Angelina: "Ariana is lying."
Myrna: "Jane is not his sister."

Can you find out who is the man's sister among them?

Readers with high attention to detail can spot the mistake in the stack of shoes in 5 seconds. Are you one of them? Test your visual skills now!

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

What have one eye but still cannot see?