What does an Island and the letter T have in common?

If you paint a brown house white it will become a white house. If the stoplight changes from red to green, then the light is green. So, if you throw a white shirt into the Red Sea, what will it become?

Solve this riddle by finding the odd one out from the rest.

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

There is a hypothetical state between the USA and Mexico border 'Tango'.
Here 70 percent of the population have defective eyesight, 75 percent are hard of hearing, 80 percent have Nose trouble and 85 percent suffer from allergies, what percentage (at a minimum) suffer from all four ailments?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

There are two beautiful yet remote islands in the South Pacific. The Islanders born on one island always tell the truth, and the Islanders from the other island always lie.
You are on one of the islands and meet three Islanders. You ask the first which island they are from in the most appropriate Polynesian tongue, and he indicates that the other two Islanders are from the same island. You ask the second Islander the same question, and he also indicates that the other two Islanders are from the same island.
Can you guess what the third Islander will answer to the same question?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

Why is it very easy to weigh a fish?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?