Some useful links:
https://github.com/abhshkdz/neural-vqa
https://github.com/iamaaditya/VQA_Demo
https://github.com/jiasenlu/HieCoAttenVQA
http://avisingh599.github.io/deeplearning/visual-qa/
https://github.com/avisingh599/visual-qa
https://github.com/VT-vision-lab/VQA_LSTM_CNN
https://competitions.codalab.org/