There was an aeroplane crash, every single person died, but two people survived. How is this possible?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

What is harder to catch the faster you run?

Forwards I am heavy, backward I am not. What am I?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

What has to be broken before you can use it?

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

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?

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?

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?