Can you solve the maths in the below-given picture equation?

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

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

What's the best place to go shopping in the ocean?

What seven-letter word has hundreds of letters in it?

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?

In the image below, can you find the value of an angle(y)

Can you find the odd one out from the below words ?

First Second Third Forth Fifth Sixth Seventh, Eighth Nine Ten Eleven Twelve.

My location can be determined by the below rebus.
So where am i ?