Which fur should we be getting from the Lion?

Name a key which is hardest to turn.

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

Write the next letter in this sequence.
O, T, T, F, F, S, S, E, __
**Hint: It is a Number Series Puzzle

What does this simple rebus mean?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

Find the next number in the series below

21 32 54 87 131 ?

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

Detective Rockford was jogging near the beach at 4:30 am.
He hears a sound near the shack "No Michael, Please Do not shoot me".
Next instance he heard the sound of gunfire. Rockford rushes to the shack where he finds women lying dead and a gun in close proximity of three "Doctore Lawyer and a Teacher".

Rockford immediately knew that the Lawyer has committed the crime. How?