Count the number of times the letter "F" appears in the following paragraph:

FAY FRIED FIFTY POUNDS OF
SALTED FISH AND THREE POUNDS
OF DRY FENNEL FOR DINNER FOR
FORTY MEMBERS OF HER FATHER'S FAMILY.

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

In a secret society, a buried chamber can be accessed only via a secret password. The password is seven characters long and comprises of just letters and numbers.

You find a code that can help you in cracking the password. The code says "You force heaven to be empty".

Can you deduce the password from that?

Can you write down eight eights so that they add up to one thousand?

I am an odd number. Take away a letter and I become even. What number am I?

During which month do people sleep the least?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

An office is divided into 8 cubicles. How many of the cubicles are painted if only 1/8 of the cubicles are painted?