Which part of London exists in France as well ?

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

John is found dead in his office at his desk. The police have narrowed the suspects down to three people: Mrs. Jacob, John’s wife Hena and his business partner Jason . All three visited John on the day of his murder, but all three provide the police with stories of explanation as to the reason for their visit.
Police found John with his wrist watch still on his right arm, a torn up picture of his wife laying on the floor beside the trash can, and an ink pen in his right hand. On the desk, the police found a name plate, a telephone that was off the hook, and a personal calendar turned to the July 5th page with 7B91011 written on it. After examining this evidence, the police knew their suspect. Who was it ?

I look at you, you look at me I raise my right, you raise your left. What am I?

Where do fish keep their money?

I am a mother. However, I never give birth.

I am a father. However, I never nurse my children.

Wandering is not possible for me, but standing still happens occurs rarely.

Who am I?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

What occurs twice in a week, once in a year but never in a day?

If an electric train is travelling south, then which way is the smoke going?