What is the next letter in the series : OTTFFSS?
Which item is different from the rest in the group?
Which one is most populous city in the world?
Which one is not a basic colour?
What is the metal content in a 2B pencil?
Which of the following US Presidents visited Dhaka?
What is Aedis Egypti?
Which one is not a man made waterway?
Which one is the banker of the Government of Bangladesh?
Which one is not issued by a commercial bank?
Which one is not a defense Service in Bangladesh?
Which one is the longest?
Which one is not in Bangladesh?