What happened when the wheel was invented?

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?

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?

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

A game is being played where eight players can last for thirty-five minutes. Six substitutes alternate with each player in this game. Thus, all players are on the pitch for the same amount of time including the substitutes.

For how long is each player on the pitch?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

A sundial has the fewest moving parts of any timepiece. Which has the most?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

I have feet, but no legs. Which animal Am I?