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

Rahul decided to meet Simran so he boards a local train from Bombay station. Just after the station, there is a 1km long tunnel. The train starts and is now accelerating. Rahul is a claustrophobic guy, so what is the best position for him to sit?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

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

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly

Find the Odd One Out?
84129
32418
47632
36119
67626
72927

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

There is a hypothetical state between the USA and Mexico border 'Tango'.
Here 70 percent of the population have defective eyesight, 75 percent are hard of hearing, 80 percent have Nose trouble and 85 percent suffer from allergies, what percentage (at a minimum) suffer from all four ailments?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?