Puzzle 1
What shape completes the bottom line?
triangle pentagon square
square hexagon hexagon square
pentagon hexagon hexagon hexagon square triangle
hexagon octagon octagon octagon octagon ?
Puzzle Copyright © Kevin Stone
workings
hint
answer
print
www.brainbashers.com
/puzzle/zgoe
share
Hint
Look at the number of sides of each of the shapes.
Answer
Square.
Reasoning
If we add the shape's sides, the total increases by 8, then 10, then 12, etc (2 more each time).
triangle (3) + pentagon (5) + square (4) = 12
square (4) + hexagon (6) + hexagon (6) + square (4) = 20
pentagon (5) + hexagon (6) + hexagon (6) + hexagon (6) + square (4) + triangle (3) = 30
Therefore:
hexagon (6) + octagon (8) + octagon (8) + octagon (8) + octagon (8) + square (4) = 42
Alternative Reasoning
Square the first shape's sides, and the remaining shapes add up to this number.
triangle (3 x 3) = pentagon (5) + square (4)
square (4 x 4) = hexagon (6) + hexagon (6) + square (4)
pentagon (5 x 5) = hexagon (6) + hexagon (6) + hexagon (6) + square (4) + triangle (3)
Therefore:
hexagon (6 x 6) = octagon (8) + octagon (8) + octagon (8) + octagon (8) + square (4)
Puzzle 2
What has four legs …
… and only one foot?
workings
hint
answer
print
www.brainbashers.com
/puzzle/zkiv
share
Hint
This thing isn't alive.
Puzzle 3
W B H F S K F V J P Z
H S S H T J P P N W L
A F P W P N T D S W S
T R H S P L M V R G B
I D P B D W S N R T C
S R S F T D B K K F B
O M F R L Z F R K Y P
N J Z J S Z N M B J Q
E R Z F Q Z V G Y F V
P P F G F W Z W N R P
L B J V R J H F K T Z
U H F K Y F W J F S R
S S W C Q R Q Y H R S
O M W F P R Q J K H R
N M B W S K B J Y D Q
E T J Y P F D L R P F
Puzzle Copyright © Kevin Stone
workings
hint
answer
print
www.brainbashers.com
/puzzle/zjll
share
Hint
The question is somewhere in the grid.
Answer
Two.
The first column reads 'WHAT IS ONE PLUS ONE'.
Puzzle 4
This BrainBashers safe has a rather unusual control panel.
In order to open the safe, you have to press every single square once only, in the correct sequence, ending on the square marked E .
Each square indicates which square to press next, for example, 2U means move up 2 squares and 3R means move right 3 squares.
Can you determine which square you must start with?
4R
4D
1R
1D
2D
4L
1D
1R
4D
5D
2R
2D
1L
4L
2R
1D
1L
2R
2R
2D
2U
2R
2R
3U
3D
1R
3U
6L
3U
3R
1D
2U
4L
2D
3L
3U
1L
1R
1R
1R
1R
2U
6U
E
2U
2L
4L
1L
2U
Note: this puzzle is not interactive, and the safe buttons cannot be clicked.
Puzzle Copyright © Kevin Stone
workings
hint
answer
print
www.brainbashers.com
/puzzle/zixy
share
Hint
Start on any square, and see how far you can get.
Answer
Start from the 2U in the bottom right-hand corner.
next >