"I like your question"
Translation:Ninapenda swali lako
Because swali is a class 5/6 noun [plural maswali] and they take l and li- in concords (or nothing / j- / ji- on adjectives).
linatosha = your new question is enough
yanatosha = your new questions are enough
You might be mixing it up with class 9/10, which looks like this:
inatosha = your new (light) switch is enough
zinatosha = your new (light) switches are enough