Texturing in blender

I have problem with texturing… when i texture my cube for example wood texture, only one side of this cube is normal other 3 sides are suck how to rapeir it.

Use a plane instead of a cube, maybe?
Sorry, I’m joking!
Are you talking about the game engine?
If yes, you must “unwrap” your object and then use the UV Texture Editor!
Here’s an old tut:
http://otothecleaner.free.fr/tutorials/Gimpit/gimpit1/gimpit.html
Bye