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.

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?

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

If eleven plus two equals one, what does nine plus five equal?

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

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

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?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?