Logic Riddles

Question: A dad and his son were riding their bikes and crashed.They were carried to hospitals.And the doctor who looked the son told "i will rescue u because u r my son.How is this possible?

Question: You were at a carnival. You had four tickets and one ride was four tickets. Once you were done, you didn't buy anymore tickets and you had one ticket left. How is that possible?

Question: There were 2 children, the son and the daughter. The daughter was born on January 20th and the son was born on March 12th. Both of them were born in the morning. Which one did their parents see first?

Question: A computer walks up to two stores, one called '1', and one called '0'. Which does it choose?

Question: Which is correct, 9 and 5 is 13 or 9 plus 5 is 13?