What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

How many sides does a circle have?

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30

Which digit occurred maximum times between the number 1 and 1000?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

Which point will the car reach to go out?

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?

The following question it puts forth you:

25 - 55 + (85 + 65) = ?

Then, you are told that even though you might think it's wrong, the correct answer is actually 5!

Whats your reaction to it? How can this be true?

What do you think with the below Picture ?

What has many keys but can’t open a single lock?