Real or Not with Disaster Tweets - https://www.kaggle.com/c/nlp-getting-started
IEEE-CIS Fraud Detection - https://www.kaggle.com/c/ieee-fraud-detection
Quora Insincere Questions Classification - https://www.kaggle.com/c/quora-insincere-questions-classification
Titanic: Machine Learning from Disaster - https://www.kaggle.com/c/titanic