# What is the missing number?

5  13  10  16  20  19  40  ?

# Filling Of Mugs

Remove 6 liters of oil from a large oil container using only two mugs of 9 liter and 4 liter respectively.

# 5 Triangles from 5 Sticks

Make 5 triangles using the 5 sticks without breaking any.

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# Sitting Arrangement

Eight friends – Nancy, Harris, Jim, Feona, Daniel, Tony, Mary and Susan are sitting around a circular table. Susan is sitting just beside Mary. Tony is sitting 3rd to the left of Susan and also 3rd to the right of Feona who is 2nd to the left of Harris. Jim is 2nd to the right of Nancy who is opposite to Tony. Who is sitting immediate to the left of Mary?

# Secret Locker Code

A man forgot the secret code to open his locker. But he remembers the following clues:

• Fifth number plus the third number equals fourteen.
• First number is one less than twice the second number.
• Fourth number is one more than the second number.
• Second number plus the third number equals ten.
• Sum of all five numbers is 30.

Can you find out the secret code to help him out?

# Complete The Cube

Below is a cube which has been opened up. Fill in the missing boxes.

# Make 3 Squares

Make 3 squares by moving 3 clips only.

# Ranking The Students

In a class test the rank of five students are:

• Joe did not come second
• Julie did not come first
• Sandra was neither first nor fifth
• Marie ranked one places after Julie
• Robert ranked two places after Joe

Who came first, second, third, fourth and fifth?