What is the fastest way to double your money?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

Can you divide the below-given shape into four equal and identical pieces?

Two friends were betting. One said to the other, "The coin will be flipped twenty times and each time the coin lands on the head, I will give you $2 and each time it lands on the tale, you will give me $3." After flipping the coin twenty times not a single penny was exchanged among them.

How many times did the coin land on heads?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

John is pretty weird. He likes toffees but hates chocolates. He loves books but never reads. He likes to build his troops in an online game but does not proceed with the war. He likes to go swimming but is afraid of water.

Seeking this behaviour, can you tell whether he likes balloons and parties?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?