Luiaard in the sense of a lazy person doesn't translate that well, does it? I picked lazy-bones, but it wasn't allowed. I have heard 'luiaard' used in this sense in Dutch many times, I have never heard it used to describe a sloth. So the quiz question doesn't look for the main answer: it is not the case that a lazy person is being compared to a sloth, rather that a sloth is being compared to a lazy person.
I am also astonished that the quiz prefers the answer 'try' over 'attempt' for 'poging'. 'Try' as a noun is not common other than as an exclamation like 'nice try!' (or as the method of scoring in rugby, I suppose). 'Attempt' is the obvious answer.
Fluit=flute
I am also astonished that the quiz prefers the answer 'try' over 'attempt' for 'poging'. 'Try' as a noun is not common other than as an exclamation like 'nice try!' (or as the method of scoring in rugby, I suppose). 'Attempt' is the obvious answer.