Can you Find and name the hidden bird in the picture below ?

You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

If Rajina's daughter is my daughter's mom, who am I to Rajina?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

This is a picture puzzle. You have to guess the name of the movie that can be related to the picture.

I’m tall when I’m young, and I’m short when I’m old. What 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?

Can you move 2 matchsticks to form four equal sized squares.

Can you convert the number zero(0) into a positive number using just one mathematical operator ?