What is the longest word in the dictionary?

Find the mistake in the below maths equations

A = 2
A(A-1) = 2(A-1)
A2-A = 2A-2
A2-2A = A-2
A(A-2) = A-2
A = 1

What runs around the whole yard without moving?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

A woman named Maria was at the funeral of her mother. She met a nice young man that she had never seen before and after the service, they spent a bit of time together. Then she got busy and didn’t get his name or phone number before he left. She tried to find him, but no one knew who he was or how to contact him. A few weeks later, Maria’s older sister dies and the police suspect murder. Who killed the sister?

You need to move three matchsticks to form three squares. Can you do it?

Can you make four (4) nines (9) equal 100?

Can you find out which options fits best with the missing column?

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?

Can you move 2 matchsticks to form four equal sized squares.