You use fire
right click with nothing in your hand
you don't To blow up tnt in minecraft on the ipad the player or user must switch to creative mode and double tap the icon which represents the tnt yoou wish to blow up.
In the latest Minecraft, you can.
Hit it (left click it).
redstone torch
If you mean classic (Which I think you do) It wasn't made to explode (as is: It can't)
no they just had an update where you can get TNT for creative but you can't blow it up it would be fun though
Unfortunately, you won't have a way to blow up TNT in the new update.
Yes but it doesnt remove and blocks.
Place a block of TNT down then place a red stone torch beside it.
You cant
It just hasn't been implemented yet.