Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?

Andrew sees a very rare bird named "Ruppell's vulture". Soon Andrew was dead. Can you explain the mystery, Mr. Sherlock?

Replace the question mark in the picture below.

Why is it against the law for a man living in Delhi to be buried in Mumbai?

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

Can you count the number of squares in the figure below?

What can go through glass without breaking it?

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

Can you write down eight eights so that they add up to one thousand?