Brain Teasers worksheet with word puzzles and images for students to solve.

Let me analyze this brain teaser worksheet carefully.

The task says "Write each phrase on the line" for 5 brain teasers. Let me work through each one:

1. think with boxes/cubes - This looks like "think outside the box" - there are open cardboard boxes next to the word "think". So the answer is "think outside the box."

2. secret written three times in a list format, with "secret" highlighted/bolded at top - Wait, let me look again. It shows "secret" three times stacked. This could be "top secret" since it's listed at the top, or it could be "three secrets" or "secret, secret, secret"... Actually, looking more carefully - if "secret" appears three times and one is bold/highlighted at the top, this might be "top secret" (the top one is emphasized). Or it could be "keep it a secret" repeated... Hmm. Actually, I think this is "top secret" because the word "secret" is at the top and emphasized.

Wait, let me reconsider. The image shows "secret" written three times in a vertical list. The first/top "secret" appears to be in a box or highlighted. This is likely "top secret" - because "secret" is at the top.

3. spot with an X through it - "X" over "spot" = "spotless" (no spot) or "cross out the spot"... Actually, X through spot means "no spot" which would be "spotless." Or it could mean "cross that spot off your list." Most likely answer: "spotless" (without a spot / no spot).

4. once with a clock showing what appears to be 1 o'clock or similar - "once" + clock = "once upon a time" or "one time" or "once around the clock"... The clock suggests time. "Once" + clock/time = "once upon a time" or possibly "at one time" or "one o'clock." Actually, looking at this more carefully - "once" with a clock face - this is likely "once upon a time" since clocks represent time. Or it could be "one time" literally. But the most common brain teaser answer for "once" + clock is "once upon a time."

Hmm, but wait - could it be simpler? "Once" + clock showing a specific time... If the clock shows 1, it could be "one time" or "at one time." But "once upon a time" is the classic phrase.

Actually, I think the answer might be "once in a while" or "once upon a time." Given the clock imagery, "once upon a time" makes the most sense as a common phrase/idiom.

5. D inside a box/square - "D" in a box = "D-box"? No... "boxed D"? Hmm. This could be "deja vu" (D in a box/vu)? No. "D in a box" = ?

Wait - "D" inside a square/box. Could this be "square D" = "squared away"? Or "D boxed in"?

Actually, I think this might be "deja vu" - no that doesn't work with a box.

Let me think... D in a box. Could it be "D-day"? No box involved.

Oh! Maybe it's "boxed in" - but where's the D?

Or perhaps it represents the letter D being trapped/boxed = "trapped D"?

Hmm, another possibility: "D" in a box could represent "DVD" (D-V-D where V is the box shape)? No, that's a stretch.

Wait - could this be referring to "D box" as in "doghouse"? No.

Let me reconsider. The letter D inside a square/rectangle box. Common brain teasers:
- "D in a box" = ?
- Could be "enclosed D"
- Or maybe it spells something when you say it out loud

Oh! I think I got it - "D" in a box = "D-boxed" sounds like... hmm.

Actually, I wonder if this is "square D" = "squared" (as in squared away)? Or the answer is simply "boxed D" which sounds like...

Let me try another angle. What common phrases involve D and boxes?
- "Pandora's box" - no D specifically
- "thinking outside the box" - already used
- "check box" - no

Hmm, what if the D represents something? D = the fourth letter. Box = container.

Could it be "fourth dimension"? (4th letter D + box/dimension)? That's clever but maybe too complex.

Or maybe it's much simpler - "D in a box" read aloud sounds like... "Dinbox"? No.

Wait - could this be "deja vu" where the box represents "vu" (view)? That's a stretch.

Let me try: the answer might be "boxed in" where D represents... no.

Actually, I just thought of it - could this be "D-square" = "despair"? No.

Or "D box" = "deep box"? No.

Hmm, let me consider if the box itself has meaning. A square box with D inside...

OH! I think I might have it - "D" in a box could be representing the word "inside" - so "D inside" = "decide"? No...

Or maybe it's "contained D" = ?

Let me try yet another approach. What if we read it as "a D in a box" = "ad inbox"? Like email inbox? That could work! "A-D-in-box" = "an inbox" or "add inbox"?

Actually "A D in box" = "ad in box" = "inbox"! That might be it!

Or simpler: "D in a box" = the letter D is enclosed = "enclosed D"...

I'm going to go with my best guess: this might be "inbox" (in-box, with D representing... hmm, that doesn't quite work either).

Let me reconsider completely. Looking at common rebus puzzles:
- Letter in a box often means the letter is "boxed" or "contained"
- D boxed = ?

Could it be "square deal"? (D in a square = square D = square deal)? That's possible!

Or "fair and square"? No D there.

What about "D-box" sounding like "deep box" or...

You know what, I think the most likely answer for "D in a box" in a brain teaser context is actually "boxed D" which when said quickly sounds like... hmm, still not getting a clear phrase.

Let me try one more time: What if the box represents "house"? D in a house = "doghouse"? (D = dog?) That's creative but uncertain.

Or the box = "room"? D in a room = ?

I'll go with my strongest guesses for all five:

1. Think outside the box
2. Top secret
3. Spotless (or "no spot")
4. Once upon a time
5. Square deal (or possibly "inbox")

Actually, for #5, let me reconsider once more. "D" in a square box...

What if it's meant to be read as "D-square" = "D squared" = mathematical term? Or "squared D"?

Or could the box represent "case"? D in a case = "discase"? No.

I think "square deal" is my best guess for #5, where D in a square = square D = square deal.

Let me finalize my answers:
1. Think outside the box
2. Top secret
3. Spotless
4. Once upon a time
5. Square deal

Final Answer:
1. Think outside the box
2. Top secret
3. Spotless
4. Once upon a time
5. Square deal