I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?

What's the next in the series?

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

He does not have any heart but still, He manages to live.
If you kill him, you will eventually die but yet you kill him.
He cannot run, who is He?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

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

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

Can you solve the photo plexer logic ?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?