How many canines are in the permanent dentition?

On incisors, the number of lobes on the lingual surface is:

Mandibular central incisors are more symmetrical than mandibular lateral incisors.

Permanent maxillary central incisors have a mesial, distal, labial, lingual and occlusal surfaces.

Maxillary lateral incisors are more likely to be "peg shaped"

The shape of the incisor crown from the proximal view is triangle.

Which incisors have less prominent lingual surfaces, maxillary incisors or mandibular incisors?

What are the red/pink structures on the tooth?

All of the following are elevations, except: