I call them Fred.
this can be from a number of things, if his teeth are not being brushed thoroughly, it could be that his enamel is being overwhelmed by the enzymes in his mouth. this could also be a crack in his sealants, or calcium deposits. if you're worried, call the dentist
This could be a number of things, please call NHS Direct, or phone your doctor.
grey. even if the entire horse is white, if it's nose ISN'T pink, it is considered grey. if it is white with grey spots you might call that a dappled grey.
White spots on a blue spruce tree can be a sign of a fungal disease, such as needle cast. These diseases can cause the needles to develop white or grey spots, leading to discoloration and premature dropping of the needles. It's important to properly identify the specific disease and treat it accordingly to prevent further damage to the tree.
You call it... An external mouth guard.
The mouth
A mouth.
A mouth.
Hard to tell without seeing but it sounds like impetigo. Call your doctor.
Dalmation
"Leeuwenbek" which if you translated that directly back to English would be "loins mouth",
The nasopahrynx is the cavity behind the nose.