student playing with his lecturer's intelligence

STUDENT: Sir, can I ask a question? LECTURER: Yes!
 STUDENT: How can one put an elephant inside the fridge?
 LECTURER: I dnt knw. 
STUDENT: It'z easy, u jst open the fridge and put it in there. I have another question!
 LECTURER: Ok, ask.
 STUDENT: How can one put a donkey inside the fridge? LECTURER: It'z easy, u just open the fridge and put it in there.
 STUDENT: No sir, u just open the fridge take out the elephant nd put it in there
 LECTURER: Ooh...ok!!
 STUDENT: If all the animals went 2 the lion's birthdy party with 1 animal missing, which animal would it b?
 LECTURER: The lion ofcoz bcoz it would eat all the animals.
 STUDENT: No sir, the donkey ofcoz bcoz it'z stll inside the fridge.
 LECTURER: Are u kidding me?
 STUDENT: No sir, one more last question.
 LECTURER: Ok! 
STUDENT: If there's a river of crocodiles and u want 2 cross, how would u?
 LECTURER : There's no way, I would need a ladder 2 cross. 
STUDENT: No sir, u jst swim and cross it bcoz all the animals went 2 the lion's birthday party.