Q: What letter of the alphabet is an insect?
A: B. (bee) 

Q: What letter is a part of the head?
A: I. (eye) 

Q: What letter is a drink?
A: T. (tea) 

Q: What letter is a body of water?
A: C. (sea) 

Q: What letter is a vegetable?
A: P. (pea)