Ask HN: What should I offer to my 2 years old to teach him logic?

Your two-year old baby is not developmentally ready for logic. Read him stories. Play games with physical stuff, preferably outdoors where he can get dirty. Let him run, climb, jump -- large muscle development at this stage of life turns out to be terribly important for stuff like logic later on in life.

Let him be a 2 year old BABY and give him some big colourful blocks that he won't choke on.

The kid is just a BABY and won't turn into an engineer for at least 10 more revolutions around this star.

Maybe it's too early now, I would go with offline games (think of hiding some "treasures" and let him find them).

As time goes by, you might have a look at GCompris suite https://gcompris.net/screenshots-en.html

pattern recognition. they train birds whos intelligence usually gets compared to a young child, to look for patterns.