Can you convert the number zero(0) into a positive number using just one mathematical operator ?

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

I am a five-letter word and people eat me. If you remove the first letter I become an energy form. If you remove the first two letters, I am needed to live. Scramble the last three letters and I am a drink. What word am I?

What can you catch but never throw?

You have 1023 apples and 10 bags. You have to distribute these apples in these 10 bags in any way you choose. But when I ask for a certain number of apples you have to give them in terms of bags without transferring the apples from other bags. How do you distribute the apples?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

During which month do people sleep the least?

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?