The cream is heavier than Milk. True or False?

Name a key which is hardest to turn.

A King wants to send the diamond ring to his girlfriend securely. He got multiple locks and their corresponding keys. His girlfriend does not have any keys to these locks and if he sends the key without a lock, the key can be copied in the way. How can King send the ring to his girlfriend securely?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

There was a minor accident with a doctor's son but the doctor noticed no major injury. After the treatment, the father of that doctors son is sitting with the son of the doctor without the doctor being in the room.

How can this be possible?

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

In the following series, a set of numbers is progressing with a particular pattern. Can you deduce that pattern and find the missing set?

(2 + 6), (21 + 6), (58 + 6), (119 + 6), ___

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

I am thinking of a five-digit number such that:
The first and last digits are the same, their submission is an even number and multiplication is an odd number and is equal to the fourth number. Subtract five from it and we obtain the second number. Then divide into exact halves and we get the 3rd number.

What number I am thinking of?