You can find it underground while mining and also sometimes on the surface.
In the game Minecaft, you can find gravel in pits, under water or in older versions of the game, on beaches. You can use gravel to make flint, and consequently make arrows.
No you cannot
Same place as the computers vanilla Minecraft.
The same way you get iron on Minecraft PC/Desktop Edition and Xbox Edition. Just try to find a cave.
make the nether reacter
The Nether Core
They are not in the present edition, but they may be in the future update 4.0
it has not been added
Creepers have not yet been implemented in Minecraft Pocket Edition (as of 0.3.3) however in the planned changes list it is mentioned that they may possibly be implemented in 0.4.0
Blue flowers can only be found when playing with mods or playing Minecraft: Pocket edition.
you can make beds and colored wool if you find other things
you cant unless it was updated it that case kill a spider
You dig undergrond and look for iron smelt the iron u get an iron Ingot put that next to flint which yup get from gravel put that diagonal in the crafting table and you get a flint and steel if you get stuck again look on minecraft wiki :)