A bova is an octopus. A dax is a donkey. Question: Which one of them lives under water? Answer: bova.
A wug is a grasshopper. A kiki is an elephant. Question: Which one of them has a short tail? Answer: kiki.
A toma is a sparrow. A glorp is a spider. Question: Which one of them can fly? Answer: toma.
A blick is a donkey. A tufa is a budgie. Question: Which one of them can sing? Answer: tufa.
A fep is a wren. A flib is an elephant. Question: Which one of them is a songbird? Answer: fep.
A zek is a donkey. A zup is a zebra. Question: Which one of them lives in jungles? Answer: zup.