**Question:** I have 50 rs. Where did the extra 1 rs come from?

**Answer:** I have 50 rs. If I spent 20, the remaining money would be 50 – 20 = 30 now. When I spent 15 from the remaining money, it would be 30 – 15 = 15. Again, I spent 9 from the remaining money, it would be 15 – 9 = 6. And lastly, I spent 6 from the remaining money, it would be 6- 6 = 0.

In this question, there is no problem with the numbers. Always total of spend column and total of balance column will be not equal to each other. This question is a trick question to surprise people. Now you can challenge your friends with this tricky question 🙂