Add Object-oriented design interview questions with solutions section

README.md

@@ -324,3 +324,22 @@ Check out the following links to get a better idea of what to expect:
 [View exercise and solution](https://github.com/donnemartin/system-design-primer/blob/master/solutions/system_design/scaling_aws/README.md)
 
 ![Imgur](http://i.imgur.com/jj3A5N8.png)
+
+## Object-oriented design interview questions with solutions
+
+> Common object-oriented design interview questions with sample discussions, code, and diagrams.
+>
+> Solutions linked to content in the `solutions/` folder.
+
+>**Note: This section is under development**
+
+| Question | |
+|---|---|
+| Design a deck of cards to be used for blackjack | [Solution](https://github.com/donnemartin/system-design-primer/blob/master/solutions/object_oriented_design/deck_of_cards/deck_of_cards.ipynb)  |
+| Design a call center | [Solution](https://github.com/donnemartin/system-design-primer/blob/master/solutions/object_oriented_design/call_center/call_center.ipynb)  |
+| Design a hash map | [Solution](https://github.com/donnemartin/system-design-primer/blob/master/solutions/object_oriented_design/hash_table/hash_map.ipynb)  |
+| Design a least recently used cache | [Solution](https://github.com/donnemartin/system-design-primer/blob/master/solutions/object_oriented_design/lru_cache/lru_cache.ipynb)  |
+| Design a parking lot | [Solution](https://github.com/donnemartin/system-design-primer/blob/master/solutions/object_oriented_design/parking_lot/parking_lot.ipynb)  |
+| Design a chat server | [Solution](https://github.com/donnemartin/system-design-primer/blob/master/solutions/object_oriented_design/chat_server/chat_server.ipynb)  |
+| Design a circular array | [Contribute](#contributing)  |
+| Add an object-oriented design question | [Contribute](#contributing) |