Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.

There is something which you can be arrested for attempting but not for successfully completing.

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

Take one out and scratch my head, I am now black but once was red. What am I?

What do you see in the given picture?

The following alphametic has only one solution. Can you find it?
ENLIST + SILENT + LISTEN = ANAGRAM

PS: You may start the number from 0.

What is the word or phrase below?
R | E | A | D

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

Two guards were guarding the camp.Guard-1 was looking towards the south to make sure no threat is coming from the road.Guard-2 was looking at the north to make sure no threat is coming from the top. Suddenly Guard-1 ask the Guard-2 why he is smiling?How Guard-1 knows that Guard-2 is smiling?