No.9

Yes.. Another time killing number game in the market and the name of the game is "No.9 Find the unknown number". Number puzzles always tease your brain and this No 9 game wont fail to get into your mind.

2 5 ? 2 = 2

Add all the digits together.
2+5+?+2 = 2
9 + ? = 2

Lets place 2 in the missing place.
9 + 2 = 2
11 = 2
1 + 1 = 2

Target achieved and the answer is 2 ... The game is not yet over.. Find the hidden concept on No:9 to solve the puzzle swiftly.