I can try.
Suspension of judgment: say a provocative crime has been committed and a news outlet reports on a suspect. - You should be emotionally prepared that new information could arise which explains even if not forgiving the actions of the suspect. e.g. A parent kidnapping their own child, and then it turns out that the other parent was abusing the child.
For taking stuff to the Xtreme, taxes is an approachable subject. Say if you have 100% tax rate, you might be looking at communism, but you might also look at a pirate ship where the captain divvies up the booty.
Another example would be the mental exercise of trying to figure out that maximum possible current through a conductor. Even superconductors suffer from magnetic pinching, but if you have ever seen a plasma globe at a science fair you might discover the magnetohydrodynamic phenomena of Alfven waves. - The taxes example is more direct than these about current, but I'd argue the physics discoveries are more interesting.
I very often see dogmatic beliefs in science. The mistake of 'taking the map for the terrain' is common. People will for example pick a favorite interpretation of quantum mechanics and then with complete conviction deny that effects predicted by other interpretations are worth looking for, because their interpretation excludes it. - Why try to travel around the globe? You will fall off the edge!
Figuring out that someone is making this mistake can be frustrating and time-consuming.
Counter-example takes the most creativity, and can be constructed to be too impenetrable. Recently I argued that if the cost of healthcare in the US would best represent the optimum quality, then countries with just as good service and universal healthcare too would be bankrupt.
For paradoxes, you can apparently find a very long list on Wikipedia. I don't remember ever having gone out specifically looking for paradoxes. I have encountered them during sessions of deep pondering as apparent contradictions where I expected none, so to me they are nameless.
Hope this helps! I might turn these two posts into an article... :o)