Can you replace the question mark with the correct number in the below table sequence?

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

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

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

I have 50 feet long of cloth, I need to create 50 handkerchiefs each size of 1 foot. I take one minute to cut a 1-foot handkerchief. So how long will it take to cut 50 handkerchiefs?

Two men play a dice game involving roll of two standard dice. Man X says that a 12 will be rolled first. Man Y says that two consecutive 7s will be rolled first. The men keep rolling until one of them wins.

What is the probability that X will win ?

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

The captain of a ship is telling you an interesting story and then poses a question. He says, “I have travelled the oceans far and wide. One time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly. Can you tell me how that was possible?”

Using eight eights and addition only, can you make 1000?

Can you solve the below tricky visual equation?