What is the next number in this series?

4,12,84,3612....

Can you find the company name in the pictogram below?

Which digit occurred maximum times between the number 1 and 1000?

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.

There was a greenhouse.
Inside the greenhouse, there is a white house.
Inside the white house, there is a red house.
Inside the red house, there are lots of babies.

What is It?

What can go up a chimney down, but can’t go down a chimney up?

Something Extraordinary happened on May 6th 19778 at 12:34am what was that?

Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?

Solve the puzzle by telling what does below picture means.