Spot 5 differences in two Christmas tree below:

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

How do you go from 98 to 720 using just one letter?

You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?

On a windy rainy night , I was driving in my car.
When i reach the bus stand , i see three people waiting for the bus.

1. An old lady who needs an immediate medical attention
2. My Best Friend
3. Girl whom i love from childhood

My car is a two seat, so can you tell me , what i have done in this situation ?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

There is something which you can be arrested for attempting but not for successfully completing.

In a town, there are over 100 flats.
Flat-1 is named first flat.
Flat-2 is named second flat.
Flat-3 is named third flat.

A visitors 'Victor' decides to walk through all the flats, he finds all the flats except flat-62.
Victor later founds that the local of the town have given it another name.

What is the name of the Flat?