Michael W

A drunk performs a random walk along a street. At one end of the street is a river, and at the other end is a police station. If he gets to

There are 25 red balls and 25 blue balls in a bag. Alice and Bob take turns drawing balls from the bag without replacement, with Alice going first. Interestingly, they notice

Hundreds of years ago, scientists believed that air was a pure substance which, alongside earth, wind and fire, made up all matter on Earth. Nowadays, we know that air is a

An unreliable typist is trying to type ‘Eton College’ into their Chronicle article, but cannot guarantee that the order of the letters are correct. Thus he may type ‘Eetgne ooCll’ or

One of the CCF’s guns is designed such that it can launch a projectile of mass 10 kg at a speed
of 200 m/s. The gun is placed close to a