Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

What work can one never finish?

I am sure no one can have two things for dinner. what are they?

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L.

Can you find an "ology" that begins with a P?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

I can be cracked, made, told, and played. What am I?

A man looks at a painting in a museum and says, “Brothers and sisters I have none, but that man’s father is my father’s son.” Who is in the painting?