There is something which you can be arrested for attempting but not for successfully completing.

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

I never was there, I am always to be.
You have never ever seen me, not ever you will.
Yet I am the confidence of everyone.

Who Am I?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

People make me, save me, change me, raise me. What am I?

Can it be possible to build a house that has all its four walls facing towards the South?

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?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

I ask Joseph to pick any 5 cards out of a deck with no Jokers.

He can inspect then shuffle the deck before picking any five cards. He picks out 5 cards then hands them to me (Jack can't see any of this). I look at the cards and I pick 1 card out and give it back to Joseph. I then arrange the other four cards in a special way, and give those 4 cards all face down, and in a neat pile, to Jack.

Jack looks at the 4 cards i gave him, and says out loud which card Joseph is holding (suit and number). How?

The solution uses pure logic, not sleight of hand. All Jack needs to know is the order of the cards and what is on their face, nothing more.

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?