I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

I am a word that begins with the letter “i.” If you add the letter “a” to me, I become a new word with a different meaning, but that sounds exactly the same. What word am I?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

You can hear me, but you can't touch or see me.

What am I?

In a classic wine shop, the list of three most popular wines are:
- The cost of 1 French wine bottle: 500$
- The cost of 1 German wine bottle: 100$
- The cost of 20 Dutch wine bottles: 100$

John entered the wine shop and he needs to buy
- All three types of wine bottles.
- Needs to buy Dutch wine bottles in multiples of 20.
- Need to buy 100 wine bottles in total.

John has only 10000$. How many wine bottles of each type, John must buy?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

Can you name four days which start with the letter 'T'?

You are confined in a room and given two metal rods. Out of these two rods, one is magnet and the other is the iron rod. They look starkly similar. You don't have any other metal object in the room.

How will you decide which one of those is magnet?

There are 3 apples in the basket and you take away 2. How many apples do you have now?