- Four people need to cross a dark river at night.They need torch to cross the river and at a time only 2 people at maximum can walk on bridge.They have only one torch.Speed of each person crossing the river is different.It is 3 mins, 4 mins, 10 mins and 20 mins respectively.What is the shortest time needed for all four of them to cross the river?
- There are 2 Aircrafts at place A, 1 Aircraft at place B, We can refuel aircrafts only at A.Once aircraft is fuelled to max,it has capacity to just go to B and come back to A.How do you get back the aircraft at B having no fuel using the two aircrafts at A?
- Take a look at the poster behind me.Notice there is a beautiful girl, a bottle of expensive wine, and an expensive car; if you could only choose one of the three items, which would you choose and why?
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