10 Puzzles Challenge10 Puzzles Challenge

Ludology & GameplayLudology & Gameplay

Marc O DonoghueMarc O Donoghue

A, B, C and D are single digit numbers. The A, B, C and D are single digit numbers. The following equations can be made with these following equations can be made with these numbers.numbers.

A - C = DA - C = DD ÷ B = 2D ÷ B = 2C + D = AC + D = AB + C = A – BB + C = A – B

Find A, B, C and D.Find A, B, C and D.

Puzzle 1Puzzle 1

Puzzle 2Puzzle 2

You need to save the chicks! Section off the area You need to save the chicks! Section off the area so that the wolves cannot reach the chicks, but so that the wolves cannot reach the chicks, but using only 3 fences.using only 3 fences.

You need to save the chicks! Section off the area You need to save the chicks! Section off the area so that the wolves cannot reach the chicks, but so that the wolves cannot reach the chicks, but using only 3 fences.using only 3 fences.

How many rectangles are there in the shape How many rectangles are there in the shape below?below?

Puzzle 3Puzzle 3

Arrange the 32 ‘bits’ below so that they Arrange the 32 ‘bits’ below so that they describe something that you play with that is describe something that you play with that is not a toy…not a toy…

Puzzle 4Puzzle 4

Rearrange the following phrase so that the Rearrange the following phrase so that the number is doubled…number is doubled…

Puzzle 5Puzzle 5

20 people need to get to a 20 people need to get to a wedding in 30 minutes but wedding in 30 minutes but only there is only 1 car to only there is only 1 car to take them all. 5 people can take them all. 5 people can fit in the car. It takes 7 fit in the car. It takes 7 minutes to get to the minutes to get to the church & back. How many church & back. How many will make it to the will make it to the wedding?wedding?

Puzzle 6Puzzle 6

A, B, C and D are single digit numbers. The A, B, C and D are single digit numbers. The following equations can be made with these following equations can be made with these numbers.numbers.

A + B = CA + B = CD - C = AD - C = AB x 2 = DB x 2 = DC + A = DC + A = D

Find A, B, C and D.Find A, B, C and D.

Puzzle 7Puzzle 7

Having solved puzzle 7, can you find Charlie Having solved puzzle 7, can you find Charlie Sheen’s favourite (C + D)-letter word??Sheen’s favourite (C + D)-letter word??

Hint: ABCCBCD!!!Hint: ABCCBCD!!!

Puzzle 8Puzzle 8

How many triangles are in the shape below?How many triangles are in the shape below?

Puzzle 9Puzzle 9

Which one of these shapes can’t be drawn Which one of these shapes can’t be drawn with a continuous line? (i.e. Without lifting with a continuous line? (i.e. Without lifting the pen off the page)the pen off the page)

Puzzle 10Puzzle 10