What is the next number in this series?

4,12,84,3612....

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

There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?

Why is the longest human nose just 11 inches?

What word is represented by this rebus?

If two fifty-foot ropes are suspended from a forty-foot ceiling that is twenty feet apart, how much rope will you be able to steal if you have a knife?

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?

Which city is three-fifths chick two third cat and 50% goat?

If a wheel has 54 spokes, how many spaces are there between the spokes?

In a box, there is a jumble of 7 red balls, 6 blue balls, 5 green balls, and 4 yellow balls. What is the minimum number of balls, will you have to pick up so that you have at least 4 balls of the same colour?