The most difficult den­tistry riddles

Known for its latex, Gutta-Percha or Palaquium gutta is a tree found in Sumatra, Malaysia, Singapore, and Borneo.It grows up to 40 - 45 m in height. The bark is cracked and reddish brown. The leaves are thickly papery, oval, and have reddish-brown hairs underneath.

Adult has 32 teeth (16 in jaw and 16 in lower jaw).

Humans usually have 32 permanent (adult) teeth. On each side of each jaw, we have 2 incisors, 1 canine, 2 premolars (also called bicuspids), and 3 molars. Third molars, called "wisdom teeth", may never erupt into the mouth or form at all. In some rare cases of hyperdontia, fourth and fifth molars may be formed.