Most of these are probably things you are personally familiar with.
Strength 5: Slightly below average non-athletic adult woman. Average 9 year old. Average octogenarian.
Charisma 3: As one example, severe and usually untreated Asperger's syndrome. The sort of person who, regardless of their other merits, make you cringe every time they open their mouth. If near them, you'll instinctively want to flee the room. They can provoke an irrational rage in even patient people by their persistent officious personal habits and annoying speech. With practice, a person like this might compensate with points in diplomacy. Remember we are talking about raw natural aptitude.
Wisdom 4: Average Hollywood child star. Many athletes and celebrities. Personal life is an on going train wreck of bad decisions, poor choices of friends, failed ill-advised marriages, reckless behavior, irresponsibility, lack of self-control, lack of inhibitions, and apparent complete disregard of consequences or ability to connect outcomes to their own choices.
I hesitate to list names, in part because I don't actually get "a laugh" out of this and in part because it would likely get mean spirited not only toward the person's involved, but toward other posters. Fictional examples would probably be better, but off the top of my head I'm having trouble thinking of good examples because in fiction usually protagonists have heroic virtue that means they are seldom consistently presented as weak in any regard. More often, a hero will presented as having high innate ability, but some sort of limiting flaw or disadvantage that paralyzes them in some situation ('in front of a girl', is common). Eventually, as we follow the hero they inevitable 'level up' and demonstrate heroic ability or overcome the flaw or so forth.
I'm having trouble thinking of a fictional protagonist character that retains considerable real weakness in the long run. Inspector Clouseau might be a good example of Wisdom 3, but again this is played for humor so Clouseau situationally shows some wisdom and understanding when it is necessary for the scene or plot and then plummets to Wisdom -10 when failing to see what is literally in front of his face would be funny. Silmarily, several of the characters of Big Bang Theory are portrayed as having Charisma 3 (or less!), but only for laughs. In order to keep up our sympathy for the characters, they are portrayed as being quite charismatic at other times. Let's not forget that the real Kunal Nayyar who plays Raj is married to Miss India, and as an actor is paid to bring charisma to the stage even when pretending to lack it. There is a very big difference between actually lacking charisma and portraying someone that lacks charisma.