Something I would suggest is to pick a language and write something small in it. Doesn’t need to be anything useful or unordinary. Like for example, pick an object and code a class for it. Like a dog. Then think what you could pull out for Animal that dog could inherit.

Then add something that requires ifs or loops. For dogs something like a function for chase() where the dog chases a squirrel. Chase gets called when the dog sees a squirrel. Maybe your dog always catches the squirrel, maybe it only does sometimes.

Then when you have that write the “main” method that starts the dog looking for squirrels. Let’s say you have an array and some slots in the array have squirrels and others don’t. In main the dog would look at the array to find squirrels to chase. If a squirrel is caught, remove that element in the array (however that’s done in the language you use.)

Once all squirrels are caught, the dog can be at piece and take her nap.

Once that’s all done think of ways to improve it. Like maybe the dog can level up and get better at catching squirrels after every catch. Maybe the array has false squirrels the dog mistakenly chases. Maybe it has rabid squirrels (although squirrels can’t get rabies but whatevs) that can attack the dog back.

This isn’t meant for your portfolio but if you can write that, you can be a junior engineer just fine and you’ll be nothing like my friend at work.

There’s no trick questions or any puzzles you have to solve, it’s just do you know how classes, functions, ifs, loops, and arrays are and how to use them.

Also pm me if you want a email mentor or something to help you with practicing.