I don't like the way the levels are defined. You have 4 arrays to describe a single level. Imagine I want to insert a level at the 5th position, it is easy to make a mistake. The correct way to do it is to have a single structure by level that holds the question, caption, answer , content and option. This way each qml item pick the right information from a single level array.

Also it would make it possible to randomize the entries for a given level.

It is also desirable to randomize the levels. But not too much to keep the difficulty increasing. So maybe use sublevel concept to have a single difficulty in a level propose sublevels randomly.

All texts to translate must be put in qsTr() e.g qsTr('Mother')

Hi,

I added also 2 comments.

Johnny