There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

Spot what is wrong here in below Picture?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

A man was found murdered on Sunday morning. His wife immediately called the police. The police questioned the wife and staff and got these alibis: The Wife said she was sleeping. The Cook was cooking breakfast. The Gardener was picking vegetables. The Maid was getting the mail. The Butler was cleaning the closet. The police instantly arrested the murderer. Who did it and how did they know?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

A quarter is one-fourth of a dollar but Mr. John has changed the equation as below :

DOLLAR * 4 = QUARTER

Can you replace each letter with a digit to make the above solution correct?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

Why is a river so rich ?