Joke: "7 8 9" (seven eight nine), why is 8 (eight) scared of 7 (seven)?
Answer: This is because; in "7 8 9", 8 is pronounced as (ate). So because seven ate nine, eight is scared that seven would eat eight also.
Listen here, dummy. This joke is for smart bears. Seven ATE nine. ATE is the past tense of EAT! That means 7 ate 9. And the number 8 is scared that 7 will eat him too! Dumbass.