What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

The dirtier I get, the whiter I look. Who am I?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

Can anyone tell me a word in the English dictionary which has a silent 'z'?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

I can turn polar bears white.
I can make anyone dance.
I can make everyone cry
I can make your hands clap
I can make you thin.
I can make you smile.
I can make you smile

Can you guess the riddle?

It has five wheels, though often think four, You cannot use it without that one more, You can put things in it, you can strap things on top, You can't find it in the market, but you can still go shop. What is it?

Can you make four (4) nines (9) equal 100?

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

Outside a massage parlour, there is a board that reads
"I only massage those who do not massage themselves."

Reading the above statement, does the masseur massage himself?