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Nice ones HandEFood. <img src="/ubbthreads/images/graemlins/up.gif" alt="" />
Here are some guesses:
Rickety bridge puzzle.
First guess.
<span class='standouttext'>Spoiler : </span><span class='spoiler'> Grandpa and Mum cross first. 10 minutes used up.
Now, Grandpa may be slow and arthritic, but he used to play cricket for Australia. So he winds up the old throwing arm and tosses the torch back across the chasm to Dad.
Dad and Grandma cross (2 minutes) - and they spend the spare five minutes laying anti-personnel mines on the bridge….
Correct? <img src="/ubbthreads/images/graemlins/think.gif" alt="" />
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Second guess(es)
<span class='standouttext'>Spoiler : </span><span class='spoiler'> Dad takes Mum across and comes back – 5+1 = 6 minutes used up.
Then he takes Grandma across and comes back – 6+ 2 +1 = 9 minutes gone.
Dad and Grandpa start back across the bridge.
8 minutes later, with 2 minutes still needed for Grandpa to finish crossing, the secret police arrive. Any of the following then happen:
1. Grandpa turns round and cuts them down with his Uzi (concealed in his crutches of course).
2. Dad and Grandpa cut the ropes holding the bridge and scramble up the boards Indiana Jones fashion.
3. The bridge is already fully loaded so the police will collapse it and die too if they attempt to cross it in pursuit. So they just rattle their swords in frustration. (Guns – who said anything about the secret police having guns!!)
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