question: more debian bug squashing parties are scheduled for the upcoming weeks: you can help debian to release sooner by participating!
Capitalize this past sentence correctly.
A: More Debian Bug Squashing Parties are scheduled for the upcoming weeks: you can help Debian to release sooner by participating!

question: some young research students in the audience heckled todd, presumably they considered his mathematics old fashioned.
Capitalize this past sentence correctly.
A: Some young research students in the audience heckled Todd, presumably they considered his mathematics old fashioned.

question: if you receive a spam mail that is not detected, click a single button, and the spam mail is removed from the rest of the 8,751,290 spamfighters in 238 countries/areas in seconds.
Capitalize this past sentence correctly.
A: If you receive a spam mail that is not detected, click a single button, and the spam mail is removed from the rest of the 8,751,290 SPAMfighters in 238 countries/areas in seconds.