3 minutes solve 5 puzzles, prove you’re smart!
Puzzle 1:

Puzzle:
The rule of the above series of numbers: The previous number minus 4 and then multiplying by 3 will produce the next next number.
(8 – 4) x 3 = 12.
(12 – 4) x 3 = 24.
(24 – 4) x 3 = 60.
(60 – 4) x 3 = 168.
Answer: 168.
Puzzle 2:

Puzzle:
The rule of the table above: In each row, the first number from the left to divide the middle number will get the last number.
9: 3 = 3.
6: 2 = 3.
8: 4 = 2.
Answer: 2.
Puzzle 3:

Puzzle:
The rule of the above series of numbers: The number following is equal to the previous number plus the sequence of odd numbers (in increasing order) multiplied by two.
0 + 1^2 = 1.
1 + 3^2 = 10.
10 + 5^2 = 35.
35 + 7^2 = 84.
Answer: 84.
Verse 4:

Puzzle:
The rule of the above series of numbers: The number of links in odd positions decreases by 2, 3, 4 and 5 units. The number of links in even positions increases by 2, 3, 4 and 5 units.
Fourth link: 2 + 2 = 4.
Sixth link: 4 + 3 = 7.
Eighth link: 7 + 4 = 11.
Tenth link: 11 + 5 = 16.
Answer: 16.
Question 5:

Puzzle:
The rule of the above calculation: Multiply and divide first, add and subtract later and work from left to right.
7 + 1 + 49 – 7 = 50.
Answer: 50.
By Business and Marketing
at Blogtuan.info – Source: cafebiz.vn – Read the original article here