The man had the hiccups. He wanted the water so he could get rid of them, so the bartender pulled out the gun and scared him. The man's hiccups went away, and he thanked the bartender.

Words.

Both were born at the same moment, but in time zones far enough away that it was a different date.

Of old age.

He fell from the last step, the closest to the floor.

Once, because after you subtract it's not 25 anymore.

11

Memory.

Queue.

Alphabet.

Color green.

6
(x+4, -2, +4, -2, +4, -2)