What topics are related to critical thinking?

Critical thinking topics are very broad but a few good ones for a presentation could be:

1.) difference between blondes and brunettes behaviors

2.) fast food has all elements you need for the day

3.) studying helps you get better grades

4.) drunk driving results in death

always start with a claim or a statement of the claim, critize each aspect and that pretty much works for any topic you choose. You can critically think really any topic but with evidence to support your claim.