The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

John was drowned by he was not wet. How?

Be active and find the killer in the picture Riddle below.

Identify the next two numbers in this series.

101, 112, 131, 415, 161, 718, ???, ???

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

What is the last thing you take off before bed?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

In a classic wine shop, the list of three most popular wines are:
- The cost of 1 French wine bottle: 500$
- The cost of 1 German wine bottle: 100$
- The cost of 20 Dutch wine bottles: 100$

John entered the wine shop and he needs to buy
- All three types of wine bottles.
- Needs to buy Dutch wine bottles in multiples of 20.
- Need to buy 100 wine bottles in total.

John has only 10000$. How many wine bottles of each type, John must buy?

A man fell off a smuggling boat into deep water. He could not swim and he was not wearing anything to keep him afloat. It took 30 minutes for the people on the boat to realize someone was missing. The missing man was rescued two hours later on the return trip. Why didn't he drown? Note:- He didn't know swimming, the sea was deep, and He wasn't holding anything

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?