Four people are stuck on one side of the bridge and opposition Army is approaching to kill them. They should cross the bridge in minimum time possible.

Crossing time needed for each.

Soldier - 1 Min
Gunman - 2 Min
King - 5 Min
Queen - 10 Min
Torch ( As much as by the person carrying it )

Conditions:

1. Only 2 people can cross the bridge as its not well built.
2. Torch should be always with somebody when crossing as its dark.
3. Torch cannot be thrown as bridge is wider than any human can throw the torch on other side.
4. Time taken by 2 persons are of the one who is slowest.