A bova is a ladybird. A dax is a sardine. Question: Which one of them can be fished? Answer: dax.
A wug is a donkey. A kiki is a turkey. Question: Which one of them can be ridden? Answer: wug.
A toma is a moth. A glorp is an eagle. Question: Which one of them is streamlined? Answer: glorp.
A blick is a chicken. A tufa is a lobster. Question: Which one of them can make a clucking noise? Answer: blick.
A fep is a locust. A flib is a budgie. Question: Which one of them likes mirrors? Answer: flib.
A zek is an emu. A zup is a pony. Question: Which one of them has wings? Answer: zek.