Can you move 2 matchsticks to form four equal sized squares.

What is wrong in the below Picture?

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

Three friends named Mr. Black, Mr. Yellow and Mr. Green enter a pub on a weekend night. They are wearing either a Black, Yellow or Green shirt.

Mr. Yellow says to them, 'Did you notice that we all are wearing different color shirts than our names?'

To this, the man who was wearing the Green shirt said. 'Wow, thats right.'

Can you identify who is wearing which colour shirt ?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

With the help clues provided in the image, can you find the 5 digit key?

Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

What's the next in the series?

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