QUESTION: Fix punctuation: Individuals with surname DSSLINGEN
ANS: Individuals with surname DESSLINGEN

QUESTION: Fix punctuation: The ondemand tankless water heater as the name implies works without a tank Basically it is a unit containing heating coils
ANS: The on-demand tankless water heater, as the name implies, works without a tank. Basically, it is a unit containing heating coils.

QUESTION: Fix punctuation: You should focus on the facts as this will help you to
ANS: ...You should focus on the facts, as this will help you to...

QUESTION: Fix punctuation: If a player leaves the table while actively involved in a hand they may be assessed a penalty
ANS:
If a player leaves the table while actively involved in a hand they may be assessed a penalty.