QUESTION: Fix punctuation: Many people have contributed with knowledge insight and good ideas to our design philosophy and product line
ANS: Many people have contributed with knowledge, insight and good ideas to our design philosophy and product line.

QUESTION: Fix punctuation: These bombs are dangerous so avoid standing too close when they explode
ANS: These bombs are dangerous so avoid standing too close when they explode!

QUESTION: Fix punctuation: August Abraham Abderhalden the hero of this brash and stylistically confident debut novel has a place in the fictional characters hall of fame
ANS: August Abraham Abderhalden, the hero of this brash and stylistically confident debut novel has a place in the fictional characters' hall of fame.

QUESTION: Fix punctuation: Jam should just be a moment to cool very easily by so that the pieces of fruit lingers in the liquid
ANS:
Jam should just be a moment to cool very easily by so that the pieces of fruit lingers in the liquid.