question: it is awfully easy and there are several recipes around the web – both with and without egg whites.
Capitalize this past sentence correctly.
A: It is awfully easy and there are several recipes around the web – both with and without egg whites.

question: there are two fundamental types of memory foam: high density and low density and both of them have different properties.
Capitalize this past sentence correctly.
A: There are two fundamental types of memory foam: high density and low density and both of them have different properties.

question: indlægget decisive day for the fehmarnbelt project blev vist første gang den sund og bælt.
Capitalize this past sentence correctly.
A: Indlægget Decisive day for the Fehmarnbelt project blev vist første gang den Sund og Bælt.