Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

Distances from you to certain cities are written below.

BERLIN 200 miles

PARIS 300 miles

ROME 400 milesAMSTERDAM 300 miles

CARDIFF ??? miles

How far should it be to Cardiff ?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

Can you count the number of triangles in the given picture?

Can you solve the below tricky visual equation?

On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?

Count the number of triangles in the picture below:

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?

With the help clues provided in the image, can you find the 5 digit key?