Puzzle 173
What number comes next in this sequence:
302 · 202 · 102 · 002 · 991 · ?
Puzzle Copyright © Kevin Stone
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Hint
Try reversing the numbers.
Answer
891.
If we reverse each of the numbers we get:
203 · 202 · 201 · 200 · 199 · ?
Which is counting down from 203, and the next number is 198, which is 891 when reversed.
Puzzle 174
Moving up or right, what is the largest total you can make, using the mathematical signs along the way?
| + |
4 |
− |
2 |
+ |
2 |
| 2 |
+ |
2 |
− |
2 |
+ |
| − |
1 |
+ |
2 |
− |
4 |
| 2 |
− |
1 |
+ |
1 |
− |
| + |
1 |
− |
2 |
+ |
3 |
| 3 |
+ |
3 |
− |
4 |
+ |
Note: this puzzle is not interactive, and the numbers cannot be clicked.
Puzzle Copyright © Kevin Stone
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Answer
The largest total that can be made is 8.
Puzzle 175
The following words have had their vowels (AEIOU) removed, can you find the missing animals?
rdvrk
rndr
prcpn
rhncrs
sqrrl
clt
frrt
sknk
dnky
ntlp
Puzzle Copyright © Kevin Stone
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Hint
One of the words is antelope.
Answers
rdvrk = aardvark
rndr = reindeer
prcpn = porcupine
rhncrs = rhinoceros
sqrrl = squirrel
clt = ocelot or colt
frrt = ferret
sknk = skunk or skink
dnky = donkey
ntlp = antelope
Puzzle 176
At a recent BrainBashers party, I noted the ages of the children who attended.
Billie was 3, James and Keith were 4, Frankie and Rebecca were 5.
How old was Lara?
Puzzle Copyright © Kevin Stone
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Hint
Look at the vowels (AEIOU).
Answer
2.
Consonants are worth 2 and vowels (AEIOU) are worth − 1.