Find the next number in the series.
1 10 24 43 67 ?

How do you go from 98 to 720 using just one letter?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

Forwards I am heavy, backward I am not. What am I?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

What do you answer even though it never asks you questions?

Can you find the odd one out from the below words ?

First Second Third Forth Fifth Sixth Seventh, Eighth Nine Ten Eleven Twelve.

I am quite hot but become too cold if you remove the first two letters. What am I?

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?

There are three light switches outside a room. One of the switches is connected to a light bulb inside the room.
Each of the three switches can be either 'ON' or 'OFF'.

You are allowed to set each switch the way you want it and then enter the room(note: you can enter the room only once)

Your task is to then determine which switch controls the bulb?