Great Minds - 6 Metal and Wood Brainteasers

Challenge your mind with six separate brain bending puzzles, named after the historical Great Minds of DaVinci, Shapespeare, Newton, Galileo, William the Conqueror and Benjamin Franklin.
Learn a few history lessons, as you use your mental powers to solve these challenging brain teasers.

Contains six separate puzzles, made out of high quality wood and metal.

1) Franklin's Keys (Difficulty 1 /5) - Separate the two keys and then reattach them
2) Da Vinci's Ball Bearings (Difficulty 3 /5) - Make the ball bearings sit a opposite ends of the puzzle
3) Galileo's Star (Difficulty 3 /5) - Remove the star from the ring and then put it back
4) Newton's Gravity Defying Puzzle (Difficulty 3 / 5) While sitting flat on a table, remove the bullet from the cup without moving the cup.
5) William the Conqueror's Antler (Difficulty 4 / 5) Separate the two antlers and reattach them
6) Shakespeare's Word (Difficulty 4 /5) Arrange the letters into a 4x4 grid so the every row (horizontal, vertical and diagonal) contain no two letters that are the same.