Decode below rebus
D
N
A
T
S , D

I have Rs.50 and I spend it in the way as below.

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

Who am I?

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

There are forty elephants and they have forty-fore heads. How can this be possible?

There is a straight highway. Four different villages lie on that highway. The distance between them is different. The third village is 60km away from the first village; the fourth is 40 km away from the second; the third is 10 km near to the fourth that it is to the second.

Can you calculate the distance between the fourth and the first village ?

Can you solve below mathematical equation?

2^1234 - 2^1233

What does below science rebus mean?

Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

You can hear me, but you can't touch or see me.

What am I?