As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

Our product and our sum always give the same answer. Who are we?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

I know a nine-letter word having only one vowel.
Do you ?

John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

Keyboard words are not in alphabetical order, Why?

Intelligence Agency need to break the vault but the problem is that they are not able to break the vault.

On the vault, a text is written as:

31 11 33 33 43 45
21 25
31 24 11 31 51 41

To Break the code Intelligence Agency brings a mathematician named Joseph.
Minutes later he deciphers the code.

Whats the code?

Which five letter word can be added at the end of below word to form a
valid word?

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The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).