If eleven plus two equals one, what does nine plus five equal?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

Count the number of triangles in the picture below:

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

If all the below statements are true

1. Gianni was either in Italy or France in 1997.
2. If Gianni did not kill Versace, Hilton must have killed him.
3. If Versace died of suffocation, then either Gianni killed him or Versace committed suicide.
4. If Gianni was in Italy in 1997, then Gianni did not kill Versace.
5. Versace died of suffocation, but he did not kill himself.

Who killed Versace and where was Gianni in 1997?

I have feet, but no legs. Which animal Am I?

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?