1) A father and son are in a car crash. The father is killed and the son is taken to the hospital. The surgeon says, "I cannot operate on this boy, he is my son." How is this possible?

2) If 2 + 3 = 10, 7 + 2 = 63, and 6 + 5 = 66, then 8 + 4 = ?

3) What has one eye but can't see?

4) Which word in the dictionary is spelled "incorrectly"?

5) If a plane crashes on the border between the US and Canada, where do they bury the survivors?

6) How many months have 28 days?

7) If you are running a race and you pass the person in second place, what place are you in?

8) A man is pushing his car and stops in front of a hotel. He realizes he is bankrupt. Why?

9) If a shirt and a tie cost $110 in total, and the shirt costs $100 more than the tie, how much does the tie cost?

10) How many 9s are there between 1 and 100?

11) What comes once in a minute, twice in a moment, but never in a thousand years?

12) The more of this there is, the less you see. What is it?

13) Three people say they are your brothers. You have no brothers. How is this possible?

14) A man is looking at a photo. Someone asks, “Whose picture are you looking at?” He replies, “Brothers and sisters, I have none. But that man’s father is my father’s son.” Who is in the photo?

15) What starts with 'e', ends with 'e', but only contains one letter?

16) If 1 = 5, 2 = 25, 3 = 125, and 4 = 625, then 5 = ?

17) If you have me, you want to share me. If you share me, you no longer have me. What am I?

18) What has keys but no locks, space but no room, and allows you to enter but never leave?

19) Which weighs more?