Puzzle 197
What number comes next in this sequence:
1 · 8 · 9 · 64 · 25 · 216 · 49 · ?
workings
hint
answer
print
www.brainbashers.com
/puzzle/zppv
share
Hint
Think of squares and cubes.
Answer
512.
Each term alternates between a square and a cube, 8 3 = 512.
Puzzle 198
What word most logically goes in the brackets:
safe [fast] malt
oust [----] flaw
Puzzle Copyright © Kevin Stone
workings
hint
answer
print
www.brainbashers.com
/puzzle/zfex
share
Hint
The answer is in the words given.
Answer
Slow.
Reasoning
Take the third letter of the first word
+ the second letter of the second word
+ plus the first letter of the first word
+ plus the fourth letter of the second word.
Double-Checking
3-1- [1234] -2-4
s-f- [fast] -a-t
o-s- [slow] -l-w
Puzzle 199
If I can boil 2 eggs in 10 minutes.
How long will it take me to boil 5 eggs?
workings
hint
answer
print
www.brainbashers.com
/puzzle/zjqx
share
Hint
Be careful with your thinking.
Answer
Exactly the same time!
Puzzle 200
I started a journey to my Aunt's yesterday with a full tank of fuel, 10 gallons, but at that exact moment my fuel tank sprang a leak.
I managed to drive 50 miles, in exactly one hour, before coming to a complete stop with an empty tank.
I know that the car manages 25 miles per gallon.
How quickly was I losing fuel?
Puzzle Copyright © Kevin Stone
workings
hint
answer
print
www.brainbashers.com
/puzzle/zrnj
share
Hint
How many gallons did the journey use?
Answer
8 gallons an hour.
Reasoning
I travelled 50 miles in one hour, at 25 miles per gallon this must have used 2 gallons.
So I must have lost the other 8 gallons through the hole.
next >