Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

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?

How is a fly different from a mosquito?

What is the last thing you take off before bed?

When can we add 2 to 11 and get 1 as the correct answer?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

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?