Be active and find the killer in the picture Riddle below.

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

John was so frustrated to be the suspect of being a sleeper terrorist that he shoot himself right between the eyes with a revolver in his toilet. The revolver and the bullets were accurate. Minutes later John walks out of the toilet unharmed.
How can this be possible?

When a clock is observed, the hour hand is at a minute mark and the minutes hand is six minutes ahead of it.

When the clock is observed again after some time, the hour hand is precisely on a different minute mark and the minute hand is seven minutes ahead of it.

Can you calculate how much time has elapsed between the two observations?

What brings you down but never up?

There is a movie name hidden in the picture that is attached with this question. Can you find out which movie is it?