Replace the question mark with the correct number in the below-given picture?

What does this rebus riddle means ?

What is more useful when it is broken?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

Find the next number in the series below.

6 18 270 72090 ?

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

Identify the 10 differences between the two given pictures.

Can you find the hidden mobile that is lost in the rug?

Can you find the missing piece of the Porsche?