I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

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

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?

Keyboard words are not in alphabetical order, Why?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

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

Which city is three-fifths chick two third cat and 50% goat?

What do you see in the image below

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

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