Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

John is 45 years older than his son Jacob. If you find similarities between their ages, both of their ages contain prime numbers as the digits. Also, John's age is the reverse of Jacob's age.

Can you find their ages?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

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?

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

A professor thinks of two consecutive numbers between 1 and 10.
'A' knows the 1st number and 'B' knows the second number

A: I do not know your number.
B: Nor do I know your number.
A: Now I know.

What are the four solutions for this?

Can you find out the remainder when 3^300 is divided by 5?

Can you find the missing piece of the Porsche?