A) Bill | B) John |

C) Todd | D) None |

Explanation:

Bill.

From the detectives code **0415 7140 7718**

Each 4 digits may represent one name

Here 7718 mirror image represent BILL.

A) 12 | B) 6 |

C) 3 | D) 1 |

Explanation:

In the given puzzle, the logic behind is

9 = 72 => **9 x 8 = 72**

8 = 56 => **8 x 7 = 56**

7 = 42 => **7 x 6 = 42**

6 = 30 => **6 x 5 = 30**

5 = 20 => **5 x 4 = 20**

Similarly,

4 = 12 => **4 x 3 = 12**

3 = 6 => **3 x 2 = 6**

A) 9 | B) 15 |

C) 6 | D) 12 |

Explanation:

In the given puzzle, the logic is the product of the number and its preceeding number gives the result.

9 = **9 x 8** = 72

8 = **8 x 7** = 56

7 = **7 x 6** = 42

6 = **6 x 5** = 30

5 = **5 x 4** = 20

Similarly,

**3 = 3 x 2 = 6.**

A) 9 | B) 8 |

C) 7 | D) 6 |

Explanation:

Here by observing the figure,

we can complete the above incomplete cube with 2 cubes in 2 rows and 2 columns

=> 2 x 4 = 8.

Hence, with **8 small cubes** we can complete the cube.

A) 3 | B) 6 |

C) Both A & B | D) None of the above |

Explanation:

The given number puzzle can be soved in two ways.

**Logic 1 ::**

**Row 1 -** 2 x 3 = 6 , 6 x 3 = 18

**Row 2 -** 4 x 5 = 20 , 20 x 5 = 100

**Row 3 -** 3 x 7 = 21 , 21 x 7 = 147

Hence, the missing number could be** 3.**

**Logic 2 ::**

**Row 1 -** 6 x (2+1) = 18

**Row 2 -** 20 x (4+1) = 100

**Row 3 -** 21 x (6+1) = 147

Hence, the missing number could be **6.**

Therefore,** 3 or 6** is the right answer.