Can you find the odd number in the following?

2716, 4135, 5321 and 7145

What do you see in the given picture?

What does does this rebus picture means ?

Which number should replace the question mark?

You need to move three matchsticks to form three squares. Can you do it?

People are waiting in line to board a 100-seat aeroplane. Steve is the first person in the line. He gets on the plane but suddenly can't remember what his seat number is, so he picks a seat at random. After that, each person who gets on the plane sits in their assigned seat if it's available, otherwise, they will choose an open seat at random to sit in. The flight is full and you are last in line. What is the probability that you get to sit in your assigned seat?

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?

Count the squares in the matchstick puzzle below?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

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