How do you make TNT?

To make TNT, place 5 gunpowder and 4 sand in the 3x3 crafting grid. When making TNT, it is important that the gun powder and sand are placed in the exact pattern as the image below. In the first row, there should be 1 gun powder in the first box, 1 sand in the second box, and 1 gun powder in the third box. read more

If the TNT explodes in water, it will do no damage to blocks, but will still damage mobs. In the Console Edition, though, it does not damage mobs. If the TNT is primed atop any sort of fence post that is two blocks high or larger, it will fall through the fence block it is activated on, and stop on the next one down. read more

TNT can be shot with a Flame enchanted bow to ignite it, however Fire Aspect swords do not have the same effect. As of 1.7 - The Update That Changed The World, players can spawn in TNT with a custom fuse time, allowing for TNT that explodes instantly, as well as TNT that takes a long time to explode. read more