QUESTION: Fix punctuation: 2 High tensile and shear strength
ANS: 2. High tensile and shear strength

QUESTION: Fix punctuation: His intuition the problems he set himself and the solutions that he found all exhibit something extraordinarily ingenious something original in an uncontrived way
ANS: His intuition, the problems he set himself, and the solutions that he found, all exhibit something extraordinarily ingenious, something original in an uncontrived way.

QUESTION: Fix punctuation: Comfortable seat ergonomic handle
ANS: Comfortable seat, ergonomic handle

QUESTION: Fix punctuation: Other companies are also experimenting with dual selfie cameras
ANS:
Other companies are also experimenting with dual selfie cameras.