Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of UK.

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

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

What Am I?

I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?

If you had an infinite supply of water and 5-quart and 3-quart pails, how would you measure exactly 4 quarts? What is the least number of steps you need?

If two's company, and three's a crowd, then whats four and five ?

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?