Do You See It?

I am the fastest animal but cannot climb the tree. What am I?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

There are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

What do you answer even though it never asks you questions?

In an office's desk, you find a unique method that shows the current day of the month. Two numbered cubes are used to depict the current date.

Can you find out the numbers on both the cubes so that each date can be mentioned using them?

Please note that you have to use both the cubes to display any date. Thus the 1st day must be represented by 01 and so on.

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

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?