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

There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?

John went to a parrot shop in Mexico, and the parrot owner told him that his parrot is so unique that he repeats everything he hears. John got excited and immediately bought the parrot. John went home and spoke many words, but the parrot does not repeat anything.
He went again to the parrot shop and complaint to the shopkeeper, but the shopkeeper never lied. Explain?

I have an eye but still cannot see.

Who am I?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

When can we add 2 to 11 and get 1 as the correct answer?

Prove that the below maths equation is true.

8 + 8 = 91

Below, you can see three complete equations and one incomplete. Based on the three complete ones, can you complete the incomplete one?

5 $ 4 $ 3 $ 9 = 4215
6 $ 9 $ 2 $ 6 = 3816
4 $ 7 $ 3 $ 3 = 1122
7 $ 2 $ 7 $ 4 = ____

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?