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

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

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?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

When is the top of a mountain similar to a savings account?

Replace the question mark with the number below given a simple math problem.

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

What demands an answer, but asks no questions

Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?