Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

Only one color, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

I have 50 feet long of cloth, I need to create 50 handkerchiefs each size of 1 foot. I take one minute to cut a 1-foot handkerchief. So how long will it take to cut 50 handkerchiefs?

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?

Why is the Hole below a Lock?

Can you solve the maths in the below-given picture equation?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

81 x 9 = 801. What must you do to make the this equation true?

Solve the puzzle by telling what does below picture means.