Complete the table series riddle by finding the number that can replace "??".

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

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

What can jump higher than a building?

A B C D E F G H

These are the letters given to you. Now you have to find out the letter that comes two to the right of the letter which is immediately to the left of the letter that comes three to the right of the letter that comes midway between the letter two to the left of the letter C and the letter immediately to the right of the letter F.

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

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

On one occasion, A Boy collects 71 rupees in form of 20 paise and 25 paise. He collects a total of 324 coins.

Can you tell me how many 20-paisa and 25-paisa he got?