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

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

If an electric train is travelling south, then which way is the smoke going?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?

what's the probability of getting a king or a queen from a pack of 52 cards?

Consider all the numbers between 1 and 1 million. Among all these numbers, there is something very special about the number 8 and the number 2202. What is it?

what does the below math rebus puzzle mean?

For this puzzle, you might have to find logic in something illogical. But hey, it's fun and a healthy little break from your strenuous puzzle-solving sessions.

Can you decipher the meaning in the following cluster of letters?

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