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).

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

Find the next number in the series below

21 32 54 87 131 ?

Seven Robbers robbed a bank and hide the coins in a lonely place.
They decide to divide the money equally the next morning. Two greedy robbers decided to cheat the others and reach the place at night. They equally divided the coins between them, one coin left. So they called another robber and then they decided to divide equally among the three. Sadly again one coin left. The same thing happened to the 4th 5th and the 6th robber.
However, when the 7th robber reached in the morning, they can divide the coins equally.

How many coins were there in total?

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C