What does it mean?

There is something which you can be arrested for attempting but not for successfully completing.

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

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

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

Decode this picture on T-Shirt and tell what it says ?

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

Can you start the fire using two pieces of wood?

How many triangles are there on the puzzle below?