UnScramble this Word: e b i s g t l?

Questions

Kiwis are the only birds that hunt by the sense of _____?

Knife, clown & pencil are types of?

La Paz, Bolivia, is the highest large city in the world at how many feet above sea-level?

Label for person whose i.q is 80-90?

Lake in southwestern Nicaragua, the largest lake in central America?