Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

What goes through cities and fields, but never moves?

What runs around the whole yard without moving?

Its something that each of us devours,
Not just us but birds, beats, trees, and flowers,
Frets iron and nibbles steel,
Toil hard stones to meal,
Exterminates king, collapse town,
And blows the mountains down.

What can you see in the middle of March and April that you can never see in any other month?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

If Bihan is 10, Anirudha is 20, and Kim and Seal are both 5, but Rikold is 10, how much is Kenniger by the same trend?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?