Brain Teaser 9 [With Answers]

Puzzle 1: Fill in the blanks with a word which makes two different words if you read from both sides:

Tim's father has kept his ______ in the ______ for scoring good marks in math.

Answer: Reward and Drawer.

Puzzle 2: There are 17 pigeons sitting in a row on a wall. A boy shoots the fifth pigeon. How many pigeons remain?

Answer: None.

Explanation: They all fly away at the sound of the gunshot.

Puzzle 3: What is the largest number you can get using only 2 digits?

Answer: 387420489 (i.e. 99)

Puzzle 4: Complete the sequence:

Z   O   T   T   F   F   S   S   __

Answer: E

Explanation: The sequence is Zero, One, Two, Three, Four, Five, Six, Seven, Eight.

Puzzle 5: Using four 7s and one 1 make 100. You can use (), /, X, +, -

Answer: 177 - 77 = 100.