It is always ahead of me yet I can never see it. What is it?

There is an ancient kingdom where every married woman keeps information regarding the fidelity of other men. However, what they don't know is the fidelity of their own husbands. Also, there is an ancient belief that they don't tell each other about the fidelity of their husbands.

On a certain day, the queen of the kingdom declares that she has identified at least one unfaithful man in the kingdom. She allows the wives to identify and gives them authority to kill their husbands if they are unfaithful at midnight.

How will the wives manage it?

In the picture given below, can you find out which digit will take place of the question mark?

Can you Find and name the hidden bird in the picture below ?

What has many keys but can’t open a single lock?

How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no one else catches or throws it.

Which English verb becomes past tense just by rearranging the letters?

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

2, 3, 5, 9, 17, _ What is the next number in the sequence?

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