Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Don’t stand there gawpin’<br />
READ IT AGAIN!!!<br />
Come up with a caption for Sgt <strong>Sandbag</strong><br />
and win a prize<br />
Mindbender<br />
Sir Plutus has forgotten that he no longer has anything of<br />
value in his wall safe, so he recently had one of those newfangled<br />
electronic security locks installed. It has eight<br />
ordinary up-down toggle switches labeled A to H. <strong>The</strong><br />
instructions that came with the device were crystal clear. To<br />
open it, all Sir Plutus has to do is set each switch either up or<br />
down such that,<br />
Neither B nor C is the same as D.<br />
G is down only if E is not the same as H.<br />
A and G are different if (but only if) E and G are both in the<br />
same position.<br />
G is down if D is down, but G is up if B is down.<br />
D is up, unless E is the same as F.<br />
A is not the same as B if either A or E is down.<br />
A, F, and G are not all in the same position.<br />
It may or may not confuse the burglars, but it has certainly<br />
confused Sir Plutus. How should the switches be set to open<br />
the safe?
Change language