I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

Why is it very easy to weigh a fish?

Different lights make me strange by changing me into different sizes. What am I?

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?

What goes through cities and fields, but never moves?

Jim and Sarah are in a long-distance relationship. Jim buys an engagement ring for Sarah and wants to mail it to her. Unfortunately, the only way to ensure the ring will be received is to place a lock on the package. Jim has locks and Sarah has locks, but neither has keys for each other’s locks. How can they make sure the ring isn’t stolen?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

At a Society election for president, precisely 963 votes were cast.
There is a total of 4 candidates that participate in the election.

The winning candidate exceeds the opponents by 53, 79 and 105 votes.

How many votes do each candidate gets?

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?