Category:Think of a Number Puzzles

This category contains results about Think of a Number Puzzles.

A think of a number puzzle is usually in the form of a game between two players.

Player A asks player B to:

Think of a number

perhaps with constraints.

Let this number be referred to as $n$.

Player A asks player B to perform certain arithmetical manipulations on $n$.

As a result, player B is left with another number, which we will refer to as $m$.

The game now goes one of $2$ ways:

$(1): \quad$ Player A announces:

The number you have been left with is $m$.

$(2): \quad$ Player A asks what $m$ is, and on learning what it is, instantaneously replies:

The number you first thought of was $n$.