Question: Adjust the seat height to obtain an angle of 90 degrees between your body and arms
Please fix the punctuation.
Fixed: [Adjust the seat height to obtain an angle of 90 degrees between your body and arms.]

Question: Thought to be visible on both interfaces by 320 pixels as those pixels by 1260 The Builder is built for display on all screens smoothly
Please fix the punctuation.
Fixed: [Thought to be visible on both interfaces by 320 pixels as those pixels by 1260, The Builder is built for display on all screens smoothly.]

Question: An easy solution is at hand though
Please fix the punctuation.
Fixed: [An easy solution is at hand though.]

Question: Friedrich also married Helene Mayr on 06 MAR 1971 in Schlangenbad Helene was born on 12 MAR 1913 in Lausanne
Please fix the punctuation.
Fixed:
[Friedrich also married Helene Mayr on 06 MAR 1971 in Schlangenbad. Helene was born on 12 MAR 1913 in Lausanne.]