Puzzle 5
Imagine a bottle recycling skip, empty other than one lonely bottle.
Every hour, on the hour, people come and put bottles into the skip.
The first hour, at Noon, one person came and put a bottle in.
One hour later, two people placed a bottle each into the skip.
An hour later four people placed a bottle each into the skip.
This doubling of people continued until 11pm, when the skip was finally full.
When was the skip exactly half full?
workings
hint
answer
print
Share link: www.brainbashers.com/puzzle/zfkx
Hint
Remember that the bottle count doubles each time.
Answer
10pm.
The skip started with 1 lonely bottle.
At Noon: 1 person came along and added a bottle, making the total 2 bottles.
At 1pm: 2 people came along and added a bottle each, making the total 2 + 2 = 4 bottles.
At 2pm: 4 people came along and added a bottle each, making the total 4 + 4 = 8 bottles.
At 3pm: 8 people came along and added a bottle each, making the total 8 + 8 = 16 bottles.
Therefore the number of bottles in the skip is doubling every hour, as it was full at 11pm, it must have been half full at 10pm.
Puzzle 6
My 6, 7, 3 is a tear to a newspaper.
My 5, 4, 1 is damper than moist.
My 1, 7, 6, 4 makes you weary blowing it up.
My 5, 7, 6, 9 helps electricity to flow.
My 8, 10, 2 is an attempt at this puzzle.
My whole might have been used to create this puzzle.
Puzzle Copyright © Kevin Stone
workings
hint
answer
print
Share link: www.brainbashers.com/puzzle/zlte
Hint
These are the first letters of the words: R, W, T, W, T.
Answer
Typewriter.
Rip, wet, tire, wire, try.
Puzzle 7
Chess Tournament - Logic Puzzles
The results of a recent Chess tournament between five close rivals is described below:
Dale finished before Alex.
Emery finished after Bailey.
Alex finished before Chris.
Emery finished after Dale.
Bailey finished before Alex.
Dale finished after Bailey.
Chris finished before Emery.
Who finished where?
Puzzle Copyright © Kevin Stone
workings
hint
answer
print
Share link: www.brainbashers.com/puzzle/zjwj
Hint
Try rewriting each statement so that they are all 'finished before' statements instead.
Answer
Bailey won...
...then Dale, Alex, Chris, and Emery.
By placing the person who finished higher to the left, we have:
Dale finished before Alex (Dale > Alex)
Emery finished after Bailey (Bailey > Emery)
Alex finished before Chris (Alex > Chris)
Emery finished after Dale (Dale > Emery)
Bailey finished before Alex (Bailey > Alex)
Dale finished after Bailey (Bailey > Dale)
Chris finished before Emery (Chris > Emery)
From Clue1 and Clue3:
Dale > Alex > Chris
Adding Clue7:
Dale > Alex > Chris > Emery
Adding Clue6:
Bailey > Dale > Alex > Chris > Emery
Which is the final placing for all the players, and can be double-checked with the remaining clues.
Puzzle 8
Below you will find 15 well-known seven-letter words, with only their endings remaining.
Can you determine the words?
....nst
....nip
....fth
....rno
....dox
....sil
....nac
....iem
....arb
....ior
....bey
....van
....ipt
....dth
....nox
Puzzle Copyright © Kevin Stone
workings
hint
answer
print
Share link: www.brainbashers.com/puzzle/zsea
Hint
These are the first letters of the words: A, P, T, I, P, U, A, R, R, W, D, C, R, B, E.
Answer
....nst >> against
....nip >> parsnip
....fth >> twelfth
....rno >> inferno
....dox >> paradox
....sil >> utensil
....nac >> almanac
....iem >> requiem
....arb >> rhubarb
....ior >> warrior
....bey >> disobey
....van >> caravan
....ipt >> receipt
....dth >> breadth
....nox >> equinox
next >