PuzzlersCathal McCoy

No match for you

1. Move only two matches to create another arithmetically correct equation.

2. From there, move another two matches to make a further equation.

Four moves in all, making two further arithmetically correct equations.

Growing up fast

b o y

• Turn this boy into a old man using 4 curved lines (arcs) and 1 straight line.

Back in your box

• Which box can you make it into?• Rules:

1. You (centre) can only move ← horizontally→ and ↑vertically↓.

2. You must enter the box via its open lid.3. You’re allowed exactly 5 moves (squares), and you may only

turn once, your final move must take you inside the box.

Build me a wall paddy

• Build the shape below without lifting your pen from the page or retracing any lines.

Leap of Earth

• Assume the earth’s orbit around the sun is a circular one, with a radius of 93 million miles.

How much longer (in miles) is the earth’s path around the sun in a leap year?