Buy me, smell me or deliver me, I do not change.

Who am I?

There was a man he lives in a hotel each morning he presses the first floor button each evening if there is a person in the elevator he asks him to press the 10 floor button if there is no one in the elevator he takes the stairs why.

Next Number in the Series,

5, 16, 49, 104, ?

I taste better than I can smell. Who am I?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

How many times can you subtract the number two from the number fifty?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

Three people check into a hotel. They pay $60 for the rent of the room. After they check-in, the manager realize that the rent for the room is $55. So, he gives $5 to the bellboy and asks him to give it to them. The bellboy thinks that it will be difficult for the three people to share $5 among them and seeking the personal benefit, he pockets $2 and gives the remaining $3 to them.

Now, each person paid $20 and got back $1. In this manner, each of them paid just $19 which totals to the amount of $57. The bellboy has $2 with him and adding them, we get $59. So where is the remaining $1?