UnScramble this Word: c e m n a i g r?

Questions

the chuck e. cheese franchise was created by---------- , a restaurant combining ----------?

a ---------- has the largest penis of any other animal in relation to its size?

a barnacle has the largest ---------- of any other animal in relation to its size?

a ---------- 's backbone is just as straight as a horse's?

a camel's backbone is just as straight as a ---------- 's?