What does it mean?

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?

Replace the (?) with the correct mathematical signs to make the expression equal to 59.

18 ? 12 ? 4 ? 5 = 59

what does the below rebus means?

Which point will the car reach to go out?

Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10

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

Can you start the fire using two pieces of wood?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

Give it food and it will live; give it water and it will die.