What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?

Can you start the fire using two pieces of wood?

Can you name an animal whose killing cannot be performed without spilling your own blood?

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

What Deficiency does the below rebus represent?

VIT_MIN

If you say my name, I will no longer exist. What am I?

By what process could you make a 'Tea-Table' into food?

Sally lives in a place where six months of the year is mild summer and the temperature drops significantly the other six months. She owns a lake where there is a small island. She wants to build a house on the island and needs to get materials there. She doesn’t have a boat, plane, or anything to transport them to the island. How does Sally solve this problem?