How can you make number one disappear by adding something to it?

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 know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

How can you leave a room with two legs and return with six legs?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

What's the best place to go shopping in the ocean?

I am an eight letter word and I am a computer terminology.
The second, third and fourth letters make an animal.
The fourth, fifth, sixth, seventh and eighth letters make a weapon.
The first, second, third and fourth letters can be taken as an outcome of any exam.
The fifth, sixth, seventh and eighth letter combine to form a high end typing software.

Can you tell who am I ?

If 21x = 79x, what is the value of x?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

What part of Turkey has the most feathers?