If a tongue is pierced in the wrong place will you Tongue become paralyze?

No this is a wise tell. The risk involved with the piercing is that if it is off to the side and nick one of the large blood vessels, then it will not clot. This can be dangerous if not taken care of.

The basic risks involved with Tongue piercing is the risk of eroding teeth, gums and the bones on the top of your mouth. This comes down to basic placement and jewelry size and is why it is so important to reduce the length of the barbell ASAP.
For more information on Tongue piercing go to the Tongue Piercing Pagee and Aftercare Instructions for Oral Piercings