When my father was 31 I was 8. Now he is twice as old as me. How old am I?

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

A sundial has the fewest moving parts of any timepiece. Which has the most?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

Replace the question mark with the number below given a simple math problem.

Next Number in the Series,

5, 16, 49, 104, ?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

What does below chemistry rebus means?

I am soft and cuddly that soothe your heart. But, If you pick my last name I am going to tear you all apart. Who 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?