Can you count the number of lines in the below picture?

John was piloting a plane behind a car but was never able to overtake it. Why?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

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 ?

I can be cracked, made, told, and played. What am I?

Can you make a six-letter word using the letters N, A and B ?

A man embarked on a questionnaire game. He kept asking the same question to whomever he found. The answer each time was different.

Can you guess what the question was?

Given below is simple addition with a defined pattern pattern:
7 + 7 = 2
8 + 8 = 4
8 + 5 = 1
6 + 9 = 3
10 + 11 = 9

Can you analyze the pattern and find out the answer for:

4 + 9 = ?

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

A maths symbol is hidden in the below Bar Graph. Can you decipher it?