Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

Can you find out the total number of triangles in the given figure?

A newspaper is supposed to have 60 pages, but pages 24 and 41 are missing.
Which other pages won't be there?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

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.

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

What is the Surname of Barbie Doll?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?