If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

There is something which is always coming but never arrives?

Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

Why do people go to bed?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

You have two rectangular wires.

Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn.

However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could you measure 45 minutes ?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?