Answer:
My children are near and far. No matter that I know where they are. The gift I give them make their day. But if I were gone they would wander away.
Five men were eating apples, A finished before B, but behind C. D finished before E, but behind B. What was the finishing order?
I am the greatest teacher out of them all, but alas in the end I kill my pupils.
A precious stone, as clear as diamond. Seek it out whilst the sun's near the horizon. Though you can walk on water with its power, Try to keep it, and it'll vanish within an hour.
Salty water everywhere but not sea in sight.
I have two eyes in the front and a lot of eyes on my tail