Adds up to 12

Adds up to 9

Crossnumber

How many eggs?

Dots puzzle

How many squares?

How many triangles?

How old am I?

Join the dots

Guess my number

Logic puzzle

Who is lying?

Lines puzzle 1

Lines puzzle 2

Lines puzzle 3

Magic square

Miners puzzle

Multiples of 5

Adds to 999

Adds to 13

Pizza puzzle

Subtraction puzzle

Adds to 23

Sum and Product