The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

All of the flowers I have are orchids except two. All of the flowers I have are hibiscuses except two. All of the flowers I have are roses except two.

Can you tell me how many flowers I have?

In a supermarket, there is an intelligent glass pane before a refrigerating unit. This glass pane allows cherries and apples through it but does not allow grapes and Orange to pass through it.

Can you identify the rule that the glass pane is following?

Replace the question mark with the correct number in below Picture:

Identify the 10 differences between the two given pictures.

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

Spot the cat in the picture below

Can you replace the question mark with the correct number?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'