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

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

It can't be seen, can't be felt, can't be heard, and can't be smelt.
It lies behind stars and under hills, And empty holes it fills.
It comes first and follows after, Ends life, and kills laughter.
What is it?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

Can you find the six hidden animals in the picture below?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

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

You can win me and lose me but never buy me
You can not eat me and never want to part with me
I can make you cry or bring you joy
I am not a machine and definitely not a toy
You keep me but i am not forever just yours
You might find me in a case or on a shelf next to a vase
I am hard and i am tall if you bump me i am sure to fall
I am made of different materials and am at many events
If your lucky and fight hard I might be yours
What am I ?

I have branches, but no fruit, trunk or leaves. What am I?

If Rajina's daughter is my daughter's mom, who am I to Rajina?