Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

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"

Can you count the number of blocks in the picture below?

Take away the whole and some still remain. What is it?

what does the below rebus means?

The dirtier I get, the whiter I look. Who am I?

One day, I thought of ways that can be used for creating a palindrome. So I decided that I will turn into a larger number by adding the reversed digits to the original number and keep doing it till I finally obtained a palindrome.

I am not sure if this process will always result in a palindrome eventually but I was able to produce a four-digit palindrome. Can you guess my starting number?

what one word does the below rebus identifies?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

Can you place six X (crosses) in below board without making three in a row in any way ?