Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

Optical Illusion: A cat is hiding in plain sight in the backyard. Only the most observant eyes can spot the cat in 7 seconds. Can you? Test your eye power now!

If a boy blows 18 bubbles,
Then pops 6 eats 7 and then
He pops 5 and blows 1.
How many are left?

The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

In the image below, can you find the value of an angle(y)

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?

Can you replace the question mark with the correct letter?

6 + 6 + 6 = N
7 + 7 + 7 = E
8 + 8 + 8 = R
0 + 0 + 0 = ?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

Two girls were born to the same mother, on the same day, at the same time, in the same month and year and yet they're not twins. How can this be ?