If you say my name, I will no longer exist. What am I?

I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

I am white when I am dirty, and black when I am clean. What am I?

Do You See It?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

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

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

How many times can you subtract the number two from the number fifty?

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