In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

If Rajina's daughter is my daughter's mom, who am I to Rajina?

What is the next number in this matchsticks series riddle?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

How could a baby fall out of a twenty-story building onto the ground and live?

I add 5 to 9 and get 2. The answer is correct, so what am I?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

Rahul decided to meet Simran so he boards a local train from Bombay station. Just after the station, there is a 1km long tunnel. The train starts and is now accelerating. Rahul is a claustrophobic guy, so what is the best position for him to sit?

Solve the mathematical equation in the picture below.

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?