QUESTION: Fix punctuation: Mad Day is a simple yet so much fun game to play
ANS: Mad Day is a simple yet so much fun game to play. [...]

QUESTION: Fix punctuation: But if you take away my voice said the little mermaid what is left for me
ANS: "But if you take away my voice," said the little mermaid, "what is left for me?"

QUESTION: Fix punctuation: Gem Mine Colours is a matching game that is aimed at children aged 5 to 10 years Select groups of parts of the same color and they will disappear from the plans
ANS: Gem Mine: Colours is a matching game that is aimed at children aged 5 to 10 years. Select groups of parts of the same color and they will disappear from the plans.

QUESTION: Fix punctuation: Recent studies show that companies worldwide delivering superior Customer Experiences have several things in common despite operating in completely different markets and industries
ANS:
Recent studies show that companies worldwide delivering superior Customer Experiences have several things in common despite operating in completely different markets and industries.