Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

A sundial has the fewest moving parts of any timepiece. Which has the most?

I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

Do you know who was buried in John's tomb?

You are confined in a room and given two metal rods. Out of these two rods, one is magnet and the other is the iron rod. They look starkly similar. You don't have any other metal object in the room.

How will you decide which one of those is magnet?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

I can write cow in 13 letters.

Can You?

Can you solve below mathematical equation?

2^1234 - 2^1233

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?