Rob Eastaway, creative problem solving

Below are a few puzzles that I enjoyed when I first came across them. None of them is a 'cheat', though they all require an element of what might be described as lateral thinking to solve them.

To try a particular puzzle just click on the name.

Good luck!

Puzzle No. 1 - "The Appearing Square"

Puzzle No. 2 - "A Standard Result?"

Puzzle No. 3 - "Top View"

Puzzle No. 4 - "Heads You Win"

Puzzle No. 5 - "A Presidential Coincidence"

Puzzle No. 6 - "Cube Dates"

Puzzle No. 7 - "Algebraic Nightmare?"

The solutions are given but do have a go before looking!