The next one is even easier because if I wanted to keep up with you guys I'd actually have to start thinking
A train leaves Chicago for Milwaukee
and travels at a speed of 90mph.
There are 100 passengers aboard and the brakes have failed so there is no stopping the train.
In Milwaukee a platoon of angry math students with bazookas lying in wait to blow that horrid thing up.
If you had an UH60 Blackhawk, what is the maximum distance you starting/evacuation point should be from the track to make you able to evacuate all the passengers before the train reaches Milwaukee?
Your knowledge of the situation starts immediately after the train leaves Chicago (actually it is just running through because of the faulty brakes).
And a funny one (this one I stole from a book and did not think up myself):
A hunter and his dog are returning home. When they are in sight of their cabin (about a mile away) the dog starts running towards the cabin at 18mph while the hunter continues to walk at 3mph. When the dog arrives at the cabin he turns around and runs back to the hunter (who is now nearer tothe cabin) only to turn around again once he reached his owner and make a run for the cabin. He continues runninng back and forth between hunter and cabin until the hunter arrives at the cabin. How much distance did the poor dog cover?
And a free question: Give a proper justification of why Superman CANNOT lift a Jumbo (i.e. Boeing 747-400). Remember that Superman is ultra strong and invulnerable, so no: "Cos it would be too heavy even for him"