Can you Find and name the hidden bird in the picture below ?

13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

I am a number I am not an odd number I am higher than 90 I am not higher than 100 If you subtract me from 100, you get nothing. What number am I?

If a shopkeeper can only place the weights on one side of the common balance. For example, if he has weights 1 and 3 then he can measure 1, 3 and 4 only. Now the question is how many minimum weights and names of the weights you will need to measure all weights from 1 to 1000? This is a fairly simple problem and very easy to prove also.

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

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

Which digit occurred maximum times between the number 1 and 1000?

I am white when I am dirty, and black when I am clean. What am I?

Take one out and scratch my head, I am now black but once was red. What am I?