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?

Can you fill the blank with the correct number?

6 30 870 756030 _____

I went to the bookshop and spent one-half of the money that was in my purse.

When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

Can you find a number that lies one third of the distance between 1/3 and 2/3?

There is a box in which distinct numbered balls have been kept. You have to pick two balls randomly from the lot.

If someone is offering you a 2 to 1 odds that the numbers will be relatively prime, for example
If the balls you picked had the numbers 6 and 13, you lose $1.
If the balls you picked had the numbers 5 and 25, you win $2.

Will you accept that bet?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

What does Alexander the Great and Winnie the Pooh have in common?