If eleven plus two equals one, what does nine plus five equal?

On 26-01-2022, Juli was murdered at her house in a city in India in the afternoon. There were three suspects in the murder and the following are the statements that were given by them:

John: I visited my village that day.
Jacob: I was out to deposit my house tax in the municipality office at that time.
Jonny: I was at a friend's place having lunch at that time.

Can you find out who is the murderer?

Why is it very easy to weigh a fish?

In The 1st month of this year(the year 2013), I noticed that the date 13-1-13 (13 January 2013) is special.

This date is special as:

Date * Month = Year.

Can you figure out which year of this century has a maximum number of such dates?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

In a secret society, a buried chamber can be accessed only via a secret password. The password is seven characters long and comprises of just letters and numbers.

You find a code that can help you in cracking the password. The code says "You force heaven to be empty".

Can you deduce the password from that?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

Solve The below Equation:

ALFA + BETA + GAMA = DELTA