What is the fastest way to double your money?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

How is a fly different from a mosquito?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

Decode the below four famous ciphers:

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

Two trains start at the same time, one from Bangalore to Mysore and the other from Mysore to Bangalore. if they arrive at their destinations one hour and four hours respectively after passing one another, how much faster is one train running than the other?

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

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

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

Complete the given grid with valid words. You can only use the letters AAEEIIMMPPTT.

Hint: The grid reads the same across as down.