Can you replace the question mark with the correct number in the below table sequence?

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

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

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

Solve the rebus riddle in the picture below.

James bond was pushed out of an aeroplane without any parachute.
He survived, How come?

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

Which word does the below Plexor means ?

A bridge is about to collapse. There are four people P, Q, R and S on one of the sides. Before the bridge collapses, they want to cross it. Now since the bridge is too weak, it can only stand the weight of two people at a time. Also, it is night time and nothing is visible. They have just one torch with them.

Now P takes one minute to cross the bridge, Q takes two minutes to cross, R takes five minutes to cross and S takes ten minutes to cross.

The bridge will collapse in seventeen minutes. How will they be able to cross the bridge before it collapses?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?