Through your logical capabilities, can you make 7 an even?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

What is the difference between a jeweller and a jailer?

Solve the following series:
AZ, GT, MN, __, YB

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different. How do you measure 45 minutes?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

He digs out tiny caves and stores gold and silver in them. He also built bridges of silver and made crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs his help, yet many people are afraid to let him help them. Who is he?

Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.