Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

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?

Find the Odd One Out?
84129
32418
47632
36119
67626
72927

If a boy blows 18 bubbles,
Then pops 6 eats 7 and then
He pops 5 and blows 1.
How many are left?

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

John was born on March 5, 1970, in Delhi, India. Jacob was born 25 days before John. The year when they took birth, Republic Day fell on Monday.

Can you find out on what day was Jacob born?

Can you find a rabbit in the given picture?

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

What is more useful when it is broken?

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