If it took eight men ten hours to build a wall, how long would it take four men to build it?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

Chocolate costs 6 rupees and a Toy costs 5 rupees. If you have 32 rupees in total, how many chocolates and how many Toys can be purchased with that amount?

A Club organizes a Running Race, and John, Jacob, Minda, and Tony participated.

The results are as follows

John beats Jacob
Minda beats Toni
Toni beats John

Who came first in the race?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

How many bananas can you eat if your stomach is empty?

What does below rebus means ?

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?

Can you count the number of triangles in the given figure?

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?