If 1+9+8=1, what is 2+8+9?

Replace the question mark with the correct number.

Can you find a number that lies one third of the distance between 1/3 and 2/3?

The following "Brain Bat" means Slow Down.
S
L
O
W

Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G

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.

Spot 5 differences in two Christmas tree below:

There was a minor accident with a doctor's son but the doctor noticed no major injury. After the treatment, the father of that doctors son is sitting with the son of the doctor without the doctor being in the room.

How can this be possible?

What has one letter and starts with an E?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

Chocolate costs 6 rupees and a Toy costs 5 rupees. If you have 32 rupees in total, how many chocolates and how many Toys can be purchased with that amount?