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Answer Key
Grade 8 Fun — Brain Teasers
1.
42
2.
SILENT
3.
B — Some Bloops may be Lazzies
4.
9
5.
U
6.
Short (add ER → shorter)
7.
Turn switch 1 on for several minutes, turn it off, turn switch 2 on, then enter: bulb on → switch 2; off but warm → switch 1; off and cold → switch 3.
8.
7.5 degrees
9.
An echo
10.
312211
11.
192 + 384 + 513 = 1089 (other solutions exist)
12.
Circle — it is not a polygon / has no straight sides
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