I’m tall when I’m young, and I’m short when I’m old. What am I?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

I am a type of food that is often found in the fridge and can be white in colour. What I am?
Hint 1: I am a dairy product.
Hint 2: You can spread me on the bread.

What is more useful when it is broken?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

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.

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?