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.

If six children and two dogs were under an umbrella, how come none of them got wet?

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

I sleep during the day and fly at night, but I have no feathers to aid my flight. 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?

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

What you cannot hold but it is yours?

Can you write down eight eights so that they add up to one thousand?

What month of the year has 28 days?