No one wants to have it, but if one got it, he does not want to lose it. What is It?

A mathematician couple was having a Frappuccino in Starbucks sitting opposite to each other. Suddenly the guy noticed the text written on the paper in front of them and exclaimed that it was wrong. The girl denied it and said it is appropriate. Both are correct. What is written on the paper?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

Move four matchsticks to the below square to form three squares?

A Car is crossing a bridge 2 miles long. The bridge can only hold 10000 lbs, which is the exact weight of the car. The Car makes it half way across the bridge and stops. A bird lands on the car. Does the bridge collapse? Explain.

Solve this tricky question. You are trapped in a forest. With you, you have a gun preloaded with two bullets in it. In front of you, there is a tiger, a leopard and a jaguar.

How do you survive?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

Next Number in the Series,

5, 16, 49, 104, ?

If your uncle’s sister is not your aunt, what relation is she to you?